diff --git a/autotests/test_window_paint_data.cpp b/autotests/test_window_paint_data.cpp
--- a/autotests/test_window_paint_data.cpp
+++ b/autotests/test_window_paint_data.cpp
@@ -107,6 +107,12 @@
     QRect expandedGeometry() const override {
         return QRect();
     }
+    QRect frameGeometry() const override {
+        return QRect();
+    }
+    QRect bufferGeometry() const override {
+        return QRect();
+    }
     int screen() const override {
         return 0;
     }
diff --git a/effects.h b/effects.h
--- a/effects.h
+++ b/effects.h
@@ -406,6 +406,8 @@
 
     QSize basicUnit() const override;
     QRect geometry() const override;
+    QRect frameGeometry() const override;
+    QRect bufferGeometry() const override;
 
     QString caption() const override;
 
diff --git a/effects.cpp b/effects.cpp
--- a/effects.cpp
+++ b/effects.cpp
@@ -1828,6 +1828,8 @@
 TOPLEVEL_HELPER(QSize, size, size)
 TOPLEVEL_HELPER(int, screen, screen)
 TOPLEVEL_HELPER(QRect, geometry, frameGeometry)
+TOPLEVEL_HELPER(QRect, frameGeometry, frameGeometry)
+TOPLEVEL_HELPER(QRect, bufferGeometry, bufferGeometry)
 TOPLEVEL_HELPER(QRect, expandedGeometry, visibleRect)
 TOPLEVEL_HELPER(QRect, rect, rect)
 TOPLEVEL_HELPER(int, desktop, desktop)
diff --git a/libkwineffects/kwineffects.h b/libkwineffects/kwineffects.h
--- a/libkwineffects/kwineffects.h
+++ b/libkwineffects/kwineffects.h
@@ -2192,7 +2192,28 @@
      * MAY BE DISOBEYED BY THE WM! It's only for information, do NOT rely on it at all.
      */
     virtual QSize basicUnit() const = 0;
+    /**
+     * @deprecated Use frameGeometry() instead.
+     */
     virtual QRect geometry() const = 0;
+    /**
+     * Returns the geometry of the window excluding server-side and client-side
+     * drop-shadows.
+     *
+     * @since 5.18
+     */
+    virtual QRect frameGeometry() const = 0;
+    /**
+     * Returns the geometry of the pixmap or buffer attached to this window.
+     *
+     * For X11 clients, this method returns server-side geometry of the Toplevel.
+     *
+     * For Wayland clients, this method returns rectangle that the main surface
+     * occupies on the screen, in global screen coordinates.
+     *
+     * @since 5.18
+     */
+    virtual QRect bufferGeometry() const = 0;
     /**
      * Geometry of the window including decoration and potentially shadows.
      * May be different from geometry() if the window has a shadow.