diff --git a/src/libkwineffects/effect.h b/src/libkwineffects/effect.h
index 7b70c8efa8..e142f343fd 100644
--- a/src/libkwineffects/effect.h
+++ b/src/libkwineffects/effect.h
@@ -924,15 +924,6 @@ public:
 
 public Q_SLOTS:
     virtual bool borderActivated(ElectricBorder border);
-
-protected:
-    /**
-     * An implementing class can call this with it's kconfig compiled singleton class.
-     * This method will perform the instance on the class.
-     * @since 5.9
-     */
-    template<typename T>
-    void initConfig();
 };
 
 /**
diff --git a/src/libkwineffects/effects.h b/src/libkwineffects/effects.h
index 66f055e9fe..ba7c48f273 100644
--- a/src/libkwineffects/effects.h
+++ b/src/libkwineffects/effects.h
@@ -2746,12 +2746,6 @@ int Effect::animationTime(int defaultDuration)
     return animationTime(T::duration() != 0 ? T::duration() : defaultDuration);
 }
 
-template<typename T>
-void Effect::initConfig()
-{
-    T::instance(effects->config());
-}
-
 /***************************************************************
  EffectWindow
 ***************************************************************/
diff --git a/src/plugins/blur/blur.cpp b/src/plugins/blur/blur.cpp
index 6d4b75ebd2..b554cbf488 100644
--- a/src/plugins/blur/blur.cpp
+++ b/src/plugins/blur/blur.cpp
@@ -50,7 +50,7 @@ QTimer *BlurEffect::s_blurManagerRemoveTimer = nullptr;
 
 BlurEffect::BlurEffect()
 {
-    initConfig<BlurConfig>();
+    BlurConfig::instance(effects->config());
     ensureResources();
 
     m_downsamplePass.shader = ShaderManager::instance()->generateShaderFromFile(ShaderTrait::MapTexture,
diff --git a/src/plugins/diminactive/diminactive.cpp b/src/plugins/diminactive/diminactive.cpp
index fd6990f0d9..e187681458 100644
--- a/src/plugins/diminactive/diminactive.cpp
+++ b/src/plugins/diminactive/diminactive.cpp
@@ -36,7 +36,7 @@ static inline bool belongToSameGroup(const EffectWindow *w1, const EffectWindow
 
 DimInactiveEffect::DimInactiveEffect()
 {
-    initConfig<DimInactiveConfig>();
+    DimInactiveConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
 
     connect(effects, &EffectsHandler::windowActivated,
diff --git a/src/plugins/fallapart/fallapart.cpp b/src/plugins/fallapart/fallapart.cpp
index 7fae1cf09d..59a0911cf6 100644
--- a/src/plugins/fallapart/fallapart.cpp
+++ b/src/plugins/fallapart/fallapart.cpp
@@ -31,7 +31,7 @@ bool FallApartEffect::supported()
 
 FallApartEffect::FallApartEffect()
 {
-    initConfig<FallApartConfig>();
+    FallApartConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
     connect(effects, &EffectsHandler::windowClosed, this, &FallApartEffect::slotWindowClosed);
     connect(effects, &EffectsHandler::windowDataChanged, this, &FallApartEffect::slotWindowDataChanged);
diff --git a/src/plugins/glide/glide.cpp b/src/plugins/glide/glide.cpp
index 1d2f5d8ee3..a9356aaa4e 100644
--- a/src/plugins/glide/glide.cpp
+++ b/src/plugins/glide/glide.cpp
@@ -68,7 +68,7 @@ static QMatrix4x4 createPerspectiveMatrix(const QRectF &rect, const qreal scale,
 
 GlideEffect::GlideEffect()
 {
-    initConfig<GlideConfig>();
+    GlideConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
 
     connect(effects, &EffectsHandler::windowAdded, this, &GlideEffect::windowAdded);
diff --git a/src/plugins/kscreen/kscreen.cpp b/src/plugins/kscreen/kscreen.cpp
index 968c3b72a5..35240e62b6 100644
--- a/src/plugins/kscreen/kscreen.cpp
+++ b/src/plugins/kscreen/kscreen.cpp
@@ -47,7 +47,7 @@ KscreenEffect::KscreenEffect()
     : Effect()
     , m_atom(effects->waylandDisplay() ? XCB_ATOM_NONE : effects->announceSupportProperty("_KDE_KWIN_KSCREEN_SUPPORT", this))
 {
-    initConfig<KscreenConfig>();
+    KscreenConfig::instance(effects->config());
     if (!effects->waylandDisplay()) {
         connect(effects, &EffectsHandler::propertyNotify, this, &KscreenEffect::propertyNotify);
         connect(effects, &EffectsHandler::xcbConnectionChanged, this, [this]() {
diff --git a/src/plugins/magiclamp/magiclamp.cpp b/src/plugins/magiclamp/magiclamp.cpp
index f7d2be8777..d41105d708 100644
--- a/src/plugins/magiclamp/magiclamp.cpp
+++ b/src/plugins/magiclamp/magiclamp.cpp
@@ -18,7 +18,7 @@ namespace KWin
 
 MagicLampEffect::MagicLampEffect()
 {
-    initConfig<MagicLampConfig>();
+    MagicLampConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
     connect(effects, &EffectsHandler::windowAdded, this, &MagicLampEffect::slotWindowAdded);
     connect(effects, &EffectsHandler::windowDeleted, this, &MagicLampEffect::slotWindowDeleted);
diff --git a/src/plugins/magnifier/magnifier.cpp b/src/plugins/magnifier/magnifier.cpp
index 97e534a8c4..a422c9cdfc 100644
--- a/src/plugins/magnifier/magnifier.cpp
+++ b/src/plugins/magnifier/magnifier.cpp
@@ -33,7 +33,7 @@ MagnifierEffect::MagnifierEffect()
     , m_texture(nullptr)
     , m_fbo(nullptr)
 {
-    initConfig<MagnifierConfig>();
+    MagnifierConfig::instance(effects->config());
     QAction *a;
     a = KStandardAction::zoomIn(this, &MagnifierEffect::zoomIn, this);
     KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << (Qt::META | Qt::Key_Equal));
diff --git a/src/plugins/mouseclick/mouseclick.cpp b/src/plugins/mouseclick/mouseclick.cpp
index 8972fa433d..2ace4b1ec1 100644
--- a/src/plugins/mouseclick/mouseclick.cpp
+++ b/src/plugins/mouseclick/mouseclick.cpp
@@ -29,7 +29,7 @@ namespace KWin
 
 MouseClickEffect::MouseClickEffect()
 {
-    initConfig<MouseClickConfig>();
+    MouseClickConfig::instance(effects->config());
     m_enabled = false;
 
     QAction *a = new QAction(this);
diff --git a/src/plugins/mousemark/mousemark.cpp b/src/plugins/mousemark/mousemark.cpp
index 2d687dae73..12776603d0 100644
--- a/src/plugins/mousemark/mousemark.cpp
+++ b/src/plugins/mousemark/mousemark.cpp
@@ -36,7 +36,7 @@ static consteval QPoint nullPoint()
 
 MouseMarkEffect::MouseMarkEffect()
 {
-    initConfig<MouseMarkConfig>();
+    MouseMarkConfig::instance(effects->config());
     QAction *a = new QAction(this);
     a->setObjectName(QStringLiteral("ClearMouseMarks"));
     a->setText(i18n("Clear All Mouse Marks"));
diff --git a/src/plugins/overview/overvieweffect.cpp b/src/plugins/overview/overvieweffect.cpp
index 65e99ba1b6..790cd6cc62 100644
--- a/src/plugins/overview/overvieweffect.cpp
+++ b/src/plugins/overview/overvieweffect.cpp
@@ -154,7 +154,7 @@ OverviewEffect::OverviewEffect()
 
     connect(effects, &EffectsHandler::screenAboutToLock, this, &OverviewEffect::realDeactivate);
 
-    initConfig<OverviewConfig>();
+    OverviewConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
 
     setSource(QUrl(QStringLiteral("qrc:/overview/qml/main.qml")));
diff --git a/src/plugins/sheet/sheet.cpp b/src/plugins/sheet/sheet.cpp
index 8a77997f09..3eb21582e7 100644
--- a/src/plugins/sheet/sheet.cpp
+++ b/src/plugins/sheet/sheet.cpp
@@ -54,7 +54,7 @@ static QMatrix4x4 createPerspectiveMatrix(const QRectF &rect, const qreal scale)
 
 SheetEffect::SheetEffect()
 {
-    initConfig<SheetConfig>();
+    SheetConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
 
     connect(effects, &EffectsHandler::windowAdded, this, &SheetEffect::slotWindowAdded);
diff --git a/src/plugins/slide/slide.cpp b/src/plugins/slide/slide.cpp
index 9ea1482eeb..e05ff44fdb 100644
--- a/src/plugins/slide/slide.cpp
+++ b/src/plugins/slide/slide.cpp
@@ -23,7 +23,7 @@ namespace KWin
 
 SlideEffect::SlideEffect()
 {
-    initConfig<SlideConfig>();
+    SlideConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
 
     connect(effects, &EffectsHandler::desktopChanged,
diff --git a/src/plugins/slidingpopups/slidingpopups.cpp b/src/plugins/slidingpopups/slidingpopups.cpp
index 215ab07dbc..b4018c5069 100644
--- a/src/plugins/slidingpopups/slidingpopups.cpp
+++ b/src/plugins/slidingpopups/slidingpopups.cpp
@@ -32,7 +32,7 @@ QTimer *SlidingPopupsEffect::s_slideManagerRemoveTimer = nullptr;
 
 SlidingPopupsEffect::SlidingPopupsEffect()
 {
-    initConfig<SlidingPopupsConfig>();
+    SlidingPopupsConfig::instance(effects->config());
 
     Display *display = effects->waylandDisplay();
     if (display) {
diff --git a/src/plugins/thumbnailaside/thumbnailaside.cpp b/src/plugins/thumbnailaside/thumbnailaside.cpp
index e8792f5162..ae2867dba9 100644
--- a/src/plugins/thumbnailaside/thumbnailaside.cpp
+++ b/src/plugins/thumbnailaside/thumbnailaside.cpp
@@ -25,7 +25,7 @@ namespace KWin
 
 ThumbnailAsideEffect::ThumbnailAsideEffect()
 {
-    initConfig<ThumbnailAsideConfig>();
+    ThumbnailAsideConfig::instance(effects->config());
     QAction *a = new QAction(this);
     a->setObjectName(QStringLiteral("ToggleCurrentThumbnail"));
     a->setText(i18n("Toggle Thumbnail for Current Window"));
diff --git a/src/plugins/trackmouse/trackmouse.cpp b/src/plugins/trackmouse/trackmouse.cpp
index 4ead665efa..ce3f52dee2 100644
--- a/src/plugins/trackmouse/trackmouse.cpp
+++ b/src/plugins/trackmouse/trackmouse.cpp
@@ -34,7 +34,7 @@ namespace KWin
 TrackMouseEffect::TrackMouseEffect()
     : m_angle(0)
 {
-    initConfig<TrackMouseConfig>();
+    TrackMouseConfig::instance(effects->config());
     if (effects->isOpenGLCompositing() || effects->compositingType() == QPainterCompositing) {
         m_angleBase = 90.0;
     }
diff --git a/src/plugins/windowview/windowvieweffect.cpp b/src/plugins/windowview/windowvieweffect.cpp
index e233865de0..cfa4b270f3 100644
--- a/src/plugins/windowview/windowvieweffect.cpp
+++ b/src/plugins/windowview/windowvieweffect.cpp
@@ -30,7 +30,7 @@ WindowViewEffect::WindowViewEffect()
     , m_exposeClassCurrentDesktopAction(new QAction(this))
 {
     qmlRegisterUncreatableType<WindowViewEffect>("org.kde.KWin.Effect.WindowView", 1, 0, "WindowView", QStringLiteral("WindowView cannot be created in QML"));
-    initConfig<WindowViewConfig>();
+    WindowViewConfig::instance(effects->config());
     new WindowView1Adaptor(this);
 
     QDBusConnection::sessionBus().registerObject(s_dbusObjectPath, this);
diff --git a/src/plugins/wobblywindows/wobblywindows.cpp b/src/plugins/wobblywindows/wobblywindows.cpp
index 98611886d8..1cdd49e1d1 100644
--- a/src/plugins/wobblywindows/wobblywindows.cpp
+++ b/src/plugins/wobblywindows/wobblywindows.cpp
@@ -121,7 +121,7 @@ static const ParameterSet pset[5] = {set_0, set_1, set_2, set_3, set_4};
 
 WobblyWindowsEffect::WobblyWindowsEffect()
 {
-    initConfig<WobblyWindowsConfig>();
+    WobblyWindowsConfig::instance(effects->config());
     reconfigure(ReconfigureAll);
     connect(effects, &EffectsHandler::windowAdded, this, &WobblyWindowsEffect::slotWindowAdded);
 
diff --git a/src/plugins/zoom/zoom.cpp b/src/plugins/zoom/zoom.cpp
index f8021bb5a4..8db703e37b 100644
--- a/src/plugins/zoom/zoom.cpp
+++ b/src/plugins/zoom/zoom.cpp
@@ -46,7 +46,7 @@ ZoomEffect::ZoomEffect()
     , moveFactor(20.0)
     , lastPresentTime(std::chrono::milliseconds::zero())
 {
-    initConfig<ZoomConfig>();
+    ZoomConfig::instance(effects->config());
     QAction *a = nullptr;
     a = KStandardAction::zoomIn(this, SLOT(zoomIn()), this);
     KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << (Qt::META | Qt::Key_Plus));