diff --git a/autotests/kwindoweffectstest.cpp b/autotests/kwindoweffectstest.cpp
--- a/autotests/kwindoweffectstest.cpp
+++ b/autotests/kwindoweffectstest.cpp
@@ -142,19 +142,19 @@
 {
     QFETCH(KWindowEffects::SlideFromLocation, location);
 
-    KWindowEffects::slideWindow(m_widget.data(), location);
+    KWindowEffects::slideWindow(m_widget->effectiveWinId(), location);
     performSlideWindowTest(m_widget->effectiveWinId(), -1, location);
 }
 
 void KWindowEffectsTest::testSlideWindowWidgetRemove()
 {
     xcb_window_t window = m_widget->effectiveWinId();
     // first install the atom
-    KWindowEffects::slideWindow(m_widget.data(), KWindowEffects::TopEdge);
+    KWindowEffects::slideWindow(m_widget->effectiveWinId(), KWindowEffects::TopEdge);
     performSlideWindowTest(window, -1, KWindowEffects::TopEdge);
 
     // now delete it
-    KWindowEffects::slideWindow(m_widget.data(), KWindowEffects::NoEdge);
+    KWindowEffects::slideWindow(m_widget->effectiveWinId(), KWindowEffects::NoEdge);
     performSlideWindowRemoveTest(window);
 }
 
diff --git a/src/kwindoweffects.h b/src/kwindoweffects.h
--- a/src/kwindoweffects.h
+++ b/src/kwindoweffects.h
@@ -62,17 +62,20 @@
  *               Desktop and Floating won't have effect.
  * @param offset distance in pixels from the screen edge defined by location
  */
-KWINDOWSYSTEM_EXPORT void slideWindow(WId id, SlideFromLocation location, int offset);
+KWINDOWSYSTEM_EXPORT void slideWindow(WId id, SlideFromLocation location, int offset = -1);
 
+#ifndef KWINDOWSYSTEM_NO_DEPRECATED
 /**
  * Mark a window as sliding from screen edge
  * This is an overloaded member function provided for convenience
  *
  * @param widget QWidget corresponding to the top level window we want to animate
  * @param location edge of the screen from which we want the sliding effect.
  *               Desktop and Floating won't have effect.
+ * @deprecated since 5.62, use slideWindow(widget->effectiveWinId(), location);
  */
-KWINDOWSYSTEM_EXPORT void slideWindow(QWidget *widget, SlideFromLocation location);
+KWINDOWSYSTEM_DEPRECATED_EXPORT void slideWindow(QWidget *widget, SlideFromLocation location);
+#endif
 
 /**
  * @return dimension of all the windows passed as parameter
diff --git a/src/kwindoweffects.cpp b/src/kwindoweffects.cpp
--- a/src/kwindoweffects.cpp
+++ b/src/kwindoweffects.cpp
@@ -20,6 +20,9 @@
 #include "kwindoweffects_p.h"
 #include "pluginwrapper_p.h"
 #include <QGuiApplication>
+#ifndef KWINDOWSYSTEM_NO_DEPRECATED
+#include <QWidget>
+#endif
 
 KWindowEffectsPrivate::KWindowEffectsPrivate()
 {
@@ -72,10 +75,12 @@
     KWindowSystemPluginWrapper::self().effects()->slideWindow(id, location, offset);
 }
 
+#ifndef KWINDOWSYSTEM_NO_DEPRECATED
 void slideWindow(QWidget *widget, SlideFromLocation location)
 {
-    KWindowSystemPluginWrapper::self().effects()->slideWindow(widget, location);
+    slideWindow(widget->effectiveWinId(), location, -1);
 }
+#endif
 
 QList< QSize > windowSizes(const QList< WId > &ids)
 {
diff --git a/src/kwindoweffects_dummy.cpp b/src/kwindoweffects_dummy.cpp
--- a/src/kwindoweffects_dummy.cpp
+++ b/src/kwindoweffects_dummy.cpp
@@ -39,12 +39,6 @@
     Q_UNUSED(offset)
 }
 
-void KWindowEffectsPrivateDummy::slideWindow(QWidget *widget, KWindowEffects::SlideFromLocation location)
-{
-    Q_UNUSED(widget)
-    Q_UNUSED(location)
-}
-
 QList<QSize> KWindowEffectsPrivateDummy::windowSizes(const QList<WId> &ids)
 {
     QList<QSize> windowSizes;
diff --git a/src/kwindoweffects_dummy_p.h b/src/kwindoweffects_dummy_p.h
--- a/src/kwindoweffects_dummy_p.h
+++ b/src/kwindoweffects_dummy_p.h
@@ -28,7 +28,6 @@
     ~KWindowEffectsPrivateDummy() override;
     bool isEffectAvailable(KWindowEffects::Effect effect) override;
     void slideWindow(WId id, KWindowEffects::SlideFromLocation location, int offset) override;
-    void slideWindow(QWidget* widget, KWindowEffects::SlideFromLocation location) override;
     QList< QSize > windowSizes(const QList<WId> &ids) override;
     void presentWindows(WId controller, const QList<WId> &ids) override;
     void presentWindows(WId controller, int desktop = NET::OnAllDesktops) override;
diff --git a/src/kwindoweffects_p.h b/src/kwindoweffects_p.h
--- a/src/kwindoweffects_p.h
+++ b/src/kwindoweffects_p.h
@@ -27,7 +27,6 @@
     virtual ~KWindowEffectsPrivate();
     virtual bool isEffectAvailable(KWindowEffects::Effect effect) = 0;
     virtual void slideWindow(WId id, KWindowEffects::SlideFromLocation location, int offset) = 0;
-    virtual void slideWindow(QWidget *widget, KWindowEffects::SlideFromLocation location) = 0;
     virtual QList<QSize> windowSizes(const QList<WId> &ids) = 0;
     virtual void presentWindows(WId controller, const QList<WId> &ids) = 0;
     virtual void presentWindows(WId controller, int desktop = NET::OnAllDesktops) = 0;
diff --git a/src/platforms/xcb/kwindoweffects.cpp b/src/platforms/xcb/kwindoweffects.cpp
--- a/src/platforms/xcb/kwindoweffects.cpp
+++ b/src/platforms/xcb/kwindoweffects.cpp
@@ -27,7 +27,6 @@
 #include <xcb/xcb.h>
 #include <QX11Info>
 #include <QMatrix4x4>
-#include <QWidget>
 
 static const char DASHBOARD_WIN_CLASS[] = "dashboard\0dashboard";
 using namespace KWindowEffects;
@@ -135,11 +134,6 @@
     }
 }
 
-void KWindowEffectsPrivateX11::slideWindow(QWidget *widget, SlideFromLocation location)
-{
-    slideWindow(widget->effectiveWinId(), location, -1);
-}
-
 QList<QSize> KWindowEffectsPrivateX11::windowSizes(const QList<WId> &ids)
 {
     QList<QSize> windowSizes;
diff --git a/src/platforms/xcb/kwindoweffects_x11.h b/src/platforms/xcb/kwindoweffects_x11.h
--- a/src/platforms/xcb/kwindoweffects_x11.h
+++ b/src/platforms/xcb/kwindoweffects_x11.h
@@ -28,7 +28,6 @@
     ~KWindowEffectsPrivateX11() override;
     bool isEffectAvailable(KWindowEffects::Effect effect) override;
     void slideWindow(WId id, KWindowEffects::SlideFromLocation location, int offset) override;
-    void slideWindow(QWidget* widget, KWindowEffects::SlideFromLocation location) override;
     QList< QSize > windowSizes(const QList<WId> &ids) override;
     void presentWindows(WId controller, const QList<WId> &ids) override;
     void presentWindows(WId controller, int desktop = NET::OnAllDesktops) override;