diff --git a/src/backends/x11/standalone/CMakeLists.txt b/src/backends/x11/standalone/CMakeLists.txt
index d4a05644e5..147f7f8eea 100644
--- a/src/backends/x11/standalone/CMakeLists.txt
+++ b/src/backends/x11/standalone/CMakeLists.txt
@@ -1,4 +1,5 @@
 set(X11PLATFORM_SOURCES
+    x11_standalone_backend.cpp
     x11_standalone_cursor.cpp
     x11_standalone_edge.cpp
     x11_standalone_effects.cpp
@@ -11,7 +12,6 @@ set(X11PLATFORM_SOURCES
     x11_standalone_output.cpp
     x11_standalone_overlaywindow.cpp
     x11_standalone_placeholderoutput.cpp
-    x11_standalone_platform.cpp
     x11_standalone_screenedges_filter.cpp
     x11_standalone_windowselector.cpp
     x11_standalone_xfixes_cursor_event_filter.cpp
diff --git a/src/backends/x11/standalone/x11_standalone_platform.cpp b/src/backends/x11/standalone/x11_standalone_backend.cpp
similarity index 89%
rename from src/backends/x11/standalone/x11_standalone_platform.cpp
rename to src/backends/x11/standalone/x11_standalone_backend.cpp
index deab855c9d..651b136935 100644
--- a/src/backends/x11/standalone/x11_standalone_platform.cpp
+++ b/src/backends/x11/standalone/x11_standalone_backend.cpp
@@ -6,7 +6,7 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#include "x11_standalone_platform.h"
+#include "x11_standalone_backend.h"
 
 #include <config-kwin.h>
 
@@ -61,15 +61,15 @@ namespace KWin
 class XrandrEventFilter : public X11EventFilter
 {
 public:
-    explicit XrandrEventFilter(X11StandalonePlatform *backend);
+    explicit XrandrEventFilter(X11StandaloneBackend *backend);
 
     bool event(xcb_generic_event_t *event) override;
 
 private:
-    X11StandalonePlatform *m_backend;
+    X11StandaloneBackend *m_backend;
 };
 
-XrandrEventFilter::XrandrEventFilter(X11StandalonePlatform *backend)
+XrandrEventFilter::XrandrEventFilter(X11StandaloneBackend *backend)
     : X11EventFilter(Xcb::Extensions::self()->randrNotifyEvent())
     , m_backend(backend)
 {
@@ -99,7 +99,7 @@ bool XrandrEventFilter::event(xcb_generic_event_t *event)
     return false;
 }
 
-X11StandalonePlatform::X11StandalonePlatform(QObject *parent)
+X11StandaloneBackend::X11StandaloneBackend(QObject *parent)
     : OutputBackend(parent)
     , m_updateOutputsTimer(std::make_unique<QTimer>())
     , m_x11Display(QX11Info::display())
@@ -118,12 +118,12 @@ X11StandalonePlatform::X11StandalonePlatform(QObject *parent)
 #endif
 
     m_updateOutputsTimer->setSingleShot(true);
-    connect(m_updateOutputsTimer.get(), &QTimer::timeout, this, &X11StandalonePlatform::updateOutputs);
+    connect(m_updateOutputsTimer.get(), &QTimer::timeout, this, &X11StandaloneBackend::updateOutputs);
 
     m_keyboard = std::make_unique<X11Keyboard>();
 }
 
-X11StandalonePlatform::~X11StandalonePlatform()
+X11StandaloneBackend::~X11StandaloneBackend()
 {
     if (sceneEglDisplay() != EGL_NO_DISPLAY) {
         eglTerminate(sceneEglDisplay());
@@ -133,7 +133,7 @@ X11StandalonePlatform::~X11StandalonePlatform()
     }
 }
 
-bool X11StandalonePlatform::initialize()
+bool X11StandaloneBackend::initialize()
 {
     if (!QX11Info::isPlatformX11()) {
         return false;
@@ -145,11 +145,11 @@ bool X11StandalonePlatform::initialize()
     if (Xcb::Extensions::self()->isRandrAvailable()) {
         m_randrEventFilter = std::make_unique<XrandrEventFilter>(this);
     }
-    connect(Cursors::self(), &Cursors::hiddenChanged, this, &X11StandalonePlatform::updateCursor);
+    connect(Cursors::self(), &Cursors::hiddenChanged, this, &X11StandaloneBackend::updateCursor);
     return true;
 }
 
-std::unique_ptr<OpenGLBackend> X11StandalonePlatform::createOpenGLBackend()
+std::unique_ptr<OpenGLBackend> X11StandaloneBackend::createOpenGLBackend()
 {
     switch (options->glPlatformInterface()) {
 #if HAVE_EPOXY_GLX
@@ -170,7 +170,7 @@ std::unique_ptr<OpenGLBackend> X11StandalonePlatform::createOpenGLBackend()
     }
 }
 
-std::unique_ptr<Edge> X11StandalonePlatform::createScreenEdge(ScreenEdges *edges)
+std::unique_ptr<Edge> X11StandaloneBackend::createScreenEdge(ScreenEdges *edges)
 {
     if (!m_screenEdgesFilter) {
         m_screenEdgesFilter = std::make_unique<ScreenEdgesFilter>();
@@ -178,7 +178,7 @@ std::unique_ptr<Edge> X11StandalonePlatform::createScreenEdge(ScreenEdges *edges
     return std::make_unique<WindowBasedEdge>(edges);
 }
 
-void X11StandalonePlatform::createPlatformCursor(QObject *parent)
+void X11StandaloneBackend::createPlatformCursor(QObject *parent)
 {
     auto c = new X11Cursor(parent, m_xinputIntegration != nullptr);
 #if HAVE_X11_XINPUT
@@ -192,12 +192,12 @@ void X11StandalonePlatform::createPlatformCursor(QObject *parent)
 #endif
 }
 
-bool X11StandalonePlatform::hasGlx()
+bool X11StandaloneBackend::hasGlx()
 {
     return Xcb::Extensions::self()->hasGlx();
 }
 
-PlatformCursorImage X11StandalonePlatform::cursorImage() const
+PlatformCursorImage X11StandaloneBackend::cursorImage() const
 {
     auto c = kwinApp()->x11Connection();
     UniqueCPtr<xcb_xfixes_get_cursor_image_reply_t> cursor(
@@ -214,7 +214,7 @@ PlatformCursorImage X11StandalonePlatform::cursorImage() const
     return PlatformCursorImage(qcursorimg.copy(), QPoint(cursor->xhot, cursor->yhot));
 }
 
-void X11StandalonePlatform::updateCursor()
+void X11StandaloneBackend::updateCursor()
 {
     if (Cursors::self()->isCursorHidden()) {
         xcb_xfixes_hide_cursor(kwinApp()->x11Connection(), kwinApp()->x11RootWindow());
@@ -223,7 +223,7 @@ void X11StandalonePlatform::updateCursor()
     }
 }
 
-void X11StandalonePlatform::startInteractiveWindowSelection(std::function<void(KWin::Window *)> callback, const QByteArray &cursorName)
+void X11StandaloneBackend::startInteractiveWindowSelection(std::function<void(KWin::Window *)> callback, const QByteArray &cursorName)
 {
     if (!m_windowSelector) {
         m_windowSelector = std::make_unique<WindowSelector>();
@@ -231,7 +231,7 @@ void X11StandalonePlatform::startInteractiveWindowSelection(std::function<void(K
     m_windowSelector->start(callback, cursorName);
 }
 
-void X11StandalonePlatform::startInteractivePositionSelection(std::function<void(const QPoint &)> callback)
+void X11StandaloneBackend::startInteractivePositionSelection(std::function<void(const QPoint &)> callback)
 {
     if (!m_windowSelector) {
         m_windowSelector = std::make_unique<WindowSelector>();
@@ -239,17 +239,17 @@ void X11StandalonePlatform::startInteractivePositionSelection(std::function<void
     m_windowSelector->start(callback);
 }
 
-std::unique_ptr<OutlineVisual> X11StandalonePlatform::createOutline(Outline *outline)
+std::unique_ptr<OutlineVisual> X11StandaloneBackend::createOutline(Outline *outline)
 {
     return std::make_unique<NonCompositedOutlineVisual>(outline);
 }
 
-void X11StandalonePlatform::createEffectsHandler(Compositor *compositor, Scene *scene)
+void X11StandaloneBackend::createEffectsHandler(Compositor *compositor, Scene *scene)
 {
     new EffectsHandlerImplX11(compositor, scene);
 }
 
-QVector<CompositingType> X11StandalonePlatform::supportedCompositors() const
+QVector<CompositingType> X11StandaloneBackend::supportedCompositors() const
 {
     QVector<CompositingType> compositors;
 #if HAVE_EPOXY_GLX
@@ -259,25 +259,25 @@ QVector<CompositingType> X11StandalonePlatform::supportedCompositors() const
     return compositors;
 }
 
-void X11StandalonePlatform::initOutputs()
+void X11StandaloneBackend::initOutputs()
 {
     doUpdateOutputs<Xcb::RandR::ScreenResources>();
     updateRefreshRate();
 }
 
-void X11StandalonePlatform::scheduleUpdateOutputs()
+void X11StandaloneBackend::scheduleUpdateOutputs()
 {
     m_updateOutputsTimer->start();
 }
 
-void X11StandalonePlatform::updateOutputs()
+void X11StandaloneBackend::updateOutputs()
 {
     doUpdateOutputs<Xcb::RandR::CurrentResources>();
     updateRefreshRate();
 }
 
 template<typename T>
-void X11StandalonePlatform::doUpdateOutputs()
+void X11StandaloneBackend::doUpdateOutputs()
 {
     QVector<Output *> changed;
     QVector<Output *> added;
@@ -437,7 +437,7 @@ void X11StandalonePlatform::doUpdateOutputs()
     Q_EMIT outputsQueried();
 }
 
-X11Output *X11StandalonePlatform::findX11Output(const QString &name) const
+X11Output *X11StandaloneBackend::findX11Output(const QString &name) const
 {
     for (Output *output : m_outputs) {
         if (output->name() == name) {
@@ -447,17 +447,17 @@ X11Output *X11StandalonePlatform::findX11Output(const QString &name) const
     return nullptr;
 }
 
-Outputs X11StandalonePlatform::outputs() const
+Outputs X11StandaloneBackend::outputs() const
 {
     return m_outputs;
 }
 
-X11Keyboard *X11StandalonePlatform::keyboard() const
+X11Keyboard *X11StandaloneBackend::keyboard() const
 {
     return m_keyboard.get();
 }
 
-RenderLoop *X11StandalonePlatform::renderLoop() const
+RenderLoop *X11StandaloneBackend::renderLoop() const
 {
     return m_renderLoop.get();
 }
@@ -492,7 +492,7 @@ static int currentRefreshRate()
     return (*syncIt)->refreshRate();
 }
 
-void X11StandalonePlatform::updateRefreshRate()
+void X11StandaloneBackend::updateRefreshRate()
 {
     int refreshRate = currentRefreshRate();
     if (refreshRate <= 0) {
diff --git a/src/backends/x11/standalone/x11_standalone_platform.h b/src/backends/x11/standalone/x11_standalone_backend.h
similarity index 91%
rename from src/backends/x11/standalone/x11_standalone_platform.h
rename to src/backends/x11/standalone/x11_standalone_backend.h
index a0d3dea7d4..191408cd0f 100644
--- a/src/backends/x11/standalone/x11_standalone_platform.h
+++ b/src/backends/x11/standalone/x11_standalone_backend.h
@@ -6,8 +6,9 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_X11_PLATFORM_H
-#define KWIN_X11_PLATFORM_H
+
+#pragma once
+
 #include "core/outputbackend.h"
 
 #include <kwin_export.h>
@@ -35,13 +36,13 @@ class Compositor;
 class Scene;
 class Window;
 
-class KWIN_EXPORT X11StandalonePlatform : public OutputBackend
+class KWIN_EXPORT X11StandaloneBackend : public OutputBackend
 {
     Q_OBJECT
 
 public:
-    X11StandalonePlatform(QObject *parent = nullptr);
-    ~X11StandalonePlatform() override;
+    X11StandaloneBackend(QObject *parent = nullptr);
+    ~X11StandaloneBackend() override;
     bool initialize() override;
 
     std::unique_ptr<OpenGLBackend> createOpenGLBackend() override;
@@ -93,5 +94,3 @@ private:
 };
 
 }
-
-#endif
diff --git a/src/backends/x11/standalone/x11_standalone_effects.cpp b/src/backends/x11/standalone/x11_standalone_effects.cpp
index 34f9e85835..a5aeacf94c 100644
--- a/src/backends/x11/standalone/x11_standalone_effects.cpp
+++ b/src/backends/x11/standalone/x11_standalone_effects.cpp
@@ -12,10 +12,10 @@
 #include "screenedge.h"
 #include "utils/common.h"
 #include "workspace.h"
+#include "x11_standalone_backend.h"
 #include "x11_standalone_effects_keyboard_interception_filter.h"
 #include "x11_standalone_effects_mouse_interception_filter.h"
 #include "x11_standalone_keyboard.h"
-#include "x11_standalone_platform.h"
 
 namespace KWin
 {
@@ -44,7 +44,7 @@ EffectsHandlerImplX11::~EffectsHandlerImplX11()
 
 bool EffectsHandlerImplX11::doGrabKeyboard()
 {
-    auto keyboard = static_cast<X11StandalonePlatform *>(kwinApp()->outputBackend())->keyboard();
+    auto keyboard = static_cast<X11StandaloneBackend *>(kwinApp()->outputBackend())->keyboard();
     if (!keyboard->xkbKeymap()) {
         return false;
     }
diff --git a/src/backends/x11/standalone/x11_standalone_egl_backend.cpp b/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
index bb604395bd..f1c9a3e162 100644
--- a/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
+++ b/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
@@ -15,9 +15,9 @@
 #include "softwarevsyncmonitor.h"
 #include "surfaceitem_x11.h"
 #include "workspace.h"
+#include "x11_standalone_backend.h"
 #include "x11_standalone_logging.h"
 #include "x11_standalone_overlaywindow.h"
-#include "x11_standalone_platform.h"
 
 #include <QOpenGLContext>
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
@@ -43,7 +43,7 @@ bool EglLayer::endFrame(const QRegion &renderedRegion, const QRegion &damagedReg
     return true;
 }
 
-EglBackend::EglBackend(Display *display, X11StandalonePlatform *backend)
+EglBackend::EglBackend(Display *display, X11StandaloneBackend *backend)
     : EglOnXBackend(kwinApp()->x11Connection(), display, kwinApp()->x11RootWindow())
     , m_backend(backend)
     , m_overlayWindow(std::make_unique<OverlayWindowX11>())
diff --git a/src/backends/x11/standalone/x11_standalone_egl_backend.h b/src/backends/x11/standalone/x11_standalone_egl_backend.h
index a4036ae1f3..4ff31741ee 100644
--- a/src/backends/x11/standalone/x11_standalone_egl_backend.h
+++ b/src/backends/x11/standalone/x11_standalone_egl_backend.h
@@ -19,7 +19,7 @@ namespace KWin
 
 class EglPixmapTexturePrivate;
 class SoftwareVsyncMonitor;
-class X11StandalonePlatform;
+class X11StandaloneBackend;
 class EglBackend;
 
 class EglLayer : public OutputLayer
@@ -39,7 +39,7 @@ class EglBackend : public EglOnXBackend
     Q_OBJECT
 
 public:
-    EglBackend(Display *display, X11StandalonePlatform *platform);
+    EglBackend(Display *display, X11StandaloneBackend *platform);
     ~EglBackend() override;
 
     void init() override;
@@ -59,7 +59,7 @@ private:
     void presentSurface(EGLSurface surface, const QRegion &damage, const QRect &screenGeometry);
     void vblank(std::chrono::nanoseconds timestamp);
 
-    X11StandalonePlatform *m_backend;
+    X11StandaloneBackend *m_backend;
     std::unique_ptr<SoftwareVsyncMonitor> m_vsyncMonitor;
     std::unique_ptr<OverlayWindow> m_overlayWindow;
     DamageJournal m_damageJournal;
diff --git a/src/backends/x11/standalone/x11_standalone_glx_backend.cpp b/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
index a849f8086a..32bdf2f0bd 100644
--- a/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
+++ b/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
@@ -15,12 +15,12 @@
 #include "x11_standalone_glx_backend.h"
 #include "../common/kwinxrenderutils.h"
 #include "softwarevsyncmonitor.h"
+#include "x11_standalone_backend.h"
 #include "x11_standalone_glx_context_attribute_builder.h"
 #include "x11_standalone_glxconvenience.h"
 #include "x11_standalone_logging.h"
 #include "x11_standalone_omlsynccontrolvsyncmonitor.h"
 #include "x11_standalone_overlaywindow.h"
-#include "x11_standalone_platform.h"
 #include "x11_standalone_sgivideosyncvsyncmonitor.h"
 // kwin
 #include "composite.h"
@@ -98,7 +98,7 @@ bool SwapEventFilter::event(xcb_generic_event_t *event)
     // it's CLOCK_MONOTONIC, so no special conversions are needed.
     const std::chrono::microseconds timestamp((uint64_t(swapEvent->ust_hi) << 32) | swapEvent->ust_lo);
 
-    const auto platform = static_cast<X11StandalonePlatform *>(kwinApp()->outputBackend());
+    const auto platform = static_cast<X11StandaloneBackend *>(kwinApp()->outputBackend());
     RenderLoopPrivate::get(platform->renderLoop())->notifyFrameCompleted(timestamp);
 
     return true;
@@ -120,7 +120,7 @@ bool GlxLayer::endFrame(const QRegion &renderedRegion, const QRegion &damagedReg
     return true;
 }
 
-GlxBackend::GlxBackend(Display *display, X11StandalonePlatform *backend)
+GlxBackend::GlxBackend(Display *display, X11StandaloneBackend *backend)
     : OpenGLBackend()
     , m_overlayWindow(std::make_unique<OverlayWindowX11>())
     , window(None)
diff --git a/src/backends/x11/standalone/x11_standalone_glx_backend.h b/src/backends/x11/standalone/x11_standalone_glx_backend.h
index 07394c5090..076102d0bc 100644
--- a/src/backends/x11/standalone/x11_standalone_glx_backend.h
+++ b/src/backends/x11/standalone/x11_standalone_glx_backend.h
@@ -29,7 +29,7 @@ namespace KWin
 
 class GlxPixmapTexturePrivate;
 class VsyncMonitor;
-class X11StandalonePlatform;
+class X11StandaloneBackend;
 class GlxBackend;
 
 // GLX_MESA_swap_interval
@@ -79,7 +79,7 @@ class GlxBackend : public OpenGLBackend
     Q_OBJECT
 
 public:
-    GlxBackend(Display *display, X11StandalonePlatform *backend);
+    GlxBackend(Display *display, X11StandaloneBackend *backend);
     ~GlxBackend() override;
     std::unique_ptr<SurfaceTexture> createSurfaceTextureX11(SurfacePixmapX11 *pixmap) override;
     OutputLayerBeginFrameInfo beginFrame();
@@ -131,7 +131,7 @@ private:
     bool m_haveEXTSwapControl = false;
     bool m_haveSGISwapControl = false;
     Display *m_x11Display;
-    X11StandalonePlatform *m_backend;
+    X11StandaloneBackend *m_backend;
     std::unique_ptr<VsyncMonitor> m_vsyncMonitor;
     std::unique_ptr<GlxLayer> m_layer;
     friend class GlxPixmapTexturePrivate;
diff --git a/src/backends/x11/standalone/x11_standalone_output.cpp b/src/backends/x11/standalone/x11_standalone_output.cpp
index a6376aed45..3f9ef9ecba 100644
--- a/src/backends/x11/standalone/x11_standalone_output.cpp
+++ b/src/backends/x11/standalone/x11_standalone_output.cpp
@@ -8,12 +8,12 @@
 */
 #include "x11_standalone_output.h"
 #include "core/colorlut.h"
-#include "x11_standalone_platform.h"
+#include "x11_standalone_backend.h"
 
 namespace KWin
 {
 
-X11Output::X11Output(X11StandalonePlatform *backend, QObject *parent)
+X11Output::X11Output(X11StandaloneBackend *backend, QObject *parent)
     : Output(parent)
     , m_backend(backend)
 {
diff --git a/src/backends/x11/standalone/x11_standalone_output.h b/src/backends/x11/standalone/x11_standalone_output.h
index 7f0cb5025e..8eaac7e3b3 100644
--- a/src/backends/x11/standalone/x11_standalone_output.h
+++ b/src/backends/x11/standalone/x11_standalone_output.h
@@ -20,7 +20,7 @@
 namespace KWin
 {
 
-class X11StandalonePlatform;
+class X11StandaloneBackend;
 
 /**
  * X11 output representation
@@ -30,7 +30,7 @@ class KWIN_EXPORT X11Output : public Output
     Q_OBJECT
 
 public:
-    explicit X11Output(X11StandalonePlatform *backend, QObject *parent = nullptr);
+    explicit X11Output(X11StandaloneBackend *backend, QObject *parent = nullptr);
 
     void updateEnabled(bool enabled);
 
@@ -48,13 +48,13 @@ private:
     void setCrtc(xcb_randr_crtc_t crtc);
     void setGammaRampSize(int size);
 
-    X11StandalonePlatform *m_backend;
+    X11StandaloneBackend *m_backend;
     RenderLoop *m_loop = nullptr;
     xcb_randr_crtc_t m_crtc = XCB_NONE;
     int m_gammaRampSize;
     int m_xineramaNumber = 0;
 
-    friend class X11StandalonePlatform;
+    friend class X11StandaloneBackend;
 };
 
 }
diff --git a/src/backends/x11/standalone/x11_standalone_placeholderoutput.cpp b/src/backends/x11/standalone/x11_standalone_placeholderoutput.cpp
index 19d3626d9d..05176c8cb7 100644
--- a/src/backends/x11/standalone/x11_standalone_placeholderoutput.cpp
+++ b/src/backends/x11/standalone/x11_standalone_placeholderoutput.cpp
@@ -5,13 +5,13 @@
 */
 
 #include "x11_standalone_placeholderoutput.h"
-#include "x11_standalone_platform.h"
 #include "utils/xcbutils.h"
+#include "x11_standalone_backend.h"
 
 namespace KWin
 {
 
-X11PlaceholderOutput::X11PlaceholderOutput(X11StandalonePlatform *backend, QObject *parent)
+X11PlaceholderOutput::X11PlaceholderOutput(X11StandaloneBackend *backend, QObject *parent)
     : Output(parent)
     , m_backend(backend)
 {
diff --git a/src/backends/x11/standalone/x11_standalone_placeholderoutput.h b/src/backends/x11/standalone/x11_standalone_placeholderoutput.h
index ad226e7096..fbfba8c6fe 100644
--- a/src/backends/x11/standalone/x11_standalone_placeholderoutput.h
+++ b/src/backends/x11/standalone/x11_standalone_placeholderoutput.h
@@ -11,21 +11,21 @@
 namespace KWin
 {
 
-class X11StandalonePlatform;
+class X11StandaloneBackend;
 
 class X11PlaceholderOutput : public Output
 {
     Q_OBJECT
 
 public:
-    explicit X11PlaceholderOutput(X11StandalonePlatform *backend, QObject *parent = nullptr);
+    explicit X11PlaceholderOutput(X11StandaloneBackend *backend, QObject *parent = nullptr);
 
     RenderLoop *renderLoop() const override;
 
     void updateEnabled(bool enabled);
 
 private:
-    X11StandalonePlatform *m_backend;
+    X11StandaloneBackend *m_backend;
 };
 
 } // namespace KWin
diff --git a/src/main_x11.cpp b/src/main_x11.cpp
index e9ca29c6b3..a8388d28e9 100644
--- a/src/main_x11.cpp
+++ b/src/main_x11.cpp
@@ -12,7 +12,7 @@
 
 #include <config-kwin.h>
 
-#include "backends/x11/standalone/x11_standalone_platform.h"
+#include "backends/x11/standalone/x11_standalone_backend.h"
 #include "core/outputbackend.h"
 #include "core/session.h"
 #include "outline.h"
@@ -200,12 +200,12 @@ void ApplicationX11::setReplace(bool replace)
 
 std::unique_ptr<Edge> ApplicationX11::createScreenEdge(ScreenEdges *parent)
 {
-    return static_cast<X11StandalonePlatform *>(outputBackend())->createScreenEdge(parent);
+    return static_cast<X11StandaloneBackend *>(outputBackend())->createScreenEdge(parent);
 }
 
 void ApplicationX11::createPlatformCursor(QObject *parent)
 {
-    static_cast<X11StandalonePlatform *>(outputBackend())->createPlatformCursor(parent);
+    static_cast<X11StandaloneBackend *>(outputBackend())->createPlatformCursor(parent);
 }
 
 std::unique_ptr<OutlineVisual> ApplicationX11::createOutline(Outline *outline)
@@ -214,27 +214,27 @@ std::unique_ptr<OutlineVisual> ApplicationX11::createOutline(Outline *outline)
     if (auto outlineVisual = Application::createOutline(outline)) {
         return outlineVisual;
     }
-    return static_cast<X11StandalonePlatform *>(outputBackend())->createOutline(outline);
+    return static_cast<X11StandaloneBackend *>(outputBackend())->createOutline(outline);
 }
 
 void ApplicationX11::createEffectsHandler(Compositor *compositor, Scene *scene)
 {
-    static_cast<X11StandalonePlatform *>(outputBackend())->createEffectsHandler(compositor, scene);
+    static_cast<X11StandaloneBackend *>(outputBackend())->createEffectsHandler(compositor, scene);
 }
 
 void ApplicationX11::startInteractiveWindowSelection(std::function<void(KWin::Window *)> callback, const QByteArray &cursorName)
 {
-    static_cast<X11StandalonePlatform *>(outputBackend())->startInteractiveWindowSelection(callback, cursorName);
+    static_cast<X11StandaloneBackend *>(outputBackend())->startInteractiveWindowSelection(callback, cursorName);
 }
 
 void ApplicationX11::startInteractivePositionSelection(std::function<void(const QPoint &)> callback)
 {
-    static_cast<X11StandalonePlatform *>(outputBackend())->startInteractivePositionSelection(callback);
+    static_cast<X11StandaloneBackend *>(outputBackend())->startInteractivePositionSelection(callback);
 }
 
 PlatformCursorImage ApplicationX11::cursorImage() const
 {
-    return static_cast<X11StandalonePlatform *>(outputBackend())->cursorImage();
+    return static_cast<X11StandaloneBackend *>(outputBackend())->cursorImage();
 }
 
 void ApplicationX11::lostSelection()
@@ -441,7 +441,7 @@ int main(int argc, char *argv[])
     }
 
     a.setSession(KWin::Session::create(KWin::Session::Type::Noop));
-    a.setOutputBackend(std::make_unique<KWin::X11StandalonePlatform>());
+    a.setOutputBackend(std::make_unique<KWin::X11StandaloneBackend>());
     a.start();
 
     return a.exec();