diff --git a/effects/glide/glide.cpp b/effects/glide/glide.cpp
--- a/effects/glide/glide.cpp
+++ b/effects/glide/glide.cpp
@@ -313,7 +313,14 @@
         return true;
     }
 
-    if (!w->isManaged()) {
+    // Don't animate combobox popups, tooltips, popup menus, etc.
+    if (w->isPopupWindow()) {
+        return false;
+    }
+
+    // Override-redirect windows are usually used for user interface
+    // concepts that are not expected to be animated by this effect.
+    if (w->isX11Client() && !w->isManaged()) {
         return false;
     }
 
diff --git a/effects/scale/scale.cpp b/effects/scale/scale.cpp
--- a/effects/scale/scale.cpp
+++ b/effects/scale/scale.cpp
@@ -274,7 +274,14 @@
         return true;
     }
 
-    if (!w->isManaged()) {
+    // Don't animate combobox popups, tooltips, popup menus, etc.
+    if (w->isPopupWindow()) {
+        return false;
+    }
+
+    // Override-redirect windows are usually used for user interface
+    // concepts that are not expected to be animated by this effect.
+    if (w->isX11Client() && !w->isManaged()) {
         return false;
     }
 
diff --git a/libkwineffects/kwineffects.h b/libkwineffects/kwineffects.h
--- a/libkwineffects/kwineffects.h
+++ b/libkwineffects/kwineffects.h
@@ -1979,6 +1979,29 @@
      * @since 5.10
      */
     Q_PROPERTY(bool unresponsive READ isUnresponsive)
+
+    /**
+     * Whether this is a Wayland client.
+     * @since 5.15
+     **/
+    Q_PROPERTY(bool waylandClient READ isWaylandClient CONSTANT)
+
+    /**
+     * Whether this is an X11 client.
+     * @since 5.15
+     **/
+    Q_PROPERTY(bool x11Client READ isX11Client CONSTANT)
+
+    /**
+     * Whether the window is a popup.
+     *
+     * A popup is a window that can be used to implement tooltips, combo box popups,
+     * popup menus and other similar user interface concepts.
+     *
+     * @since 5.15
+     **/
+    Q_PROPERTY(bool popupWindow READ isPopupWindow CONSTANT)
+
 public:
     /**  Flags explaining why painting should be disabled  */
     enum {
@@ -2230,6 +2253,21 @@
      */
     bool isUnresponsive() const;
 
+    /**
+     * @since 5.15
+     **/
+    bool isWaylandClient() const;
+
+    /**
+     * @since 5.15
+     **/
+    bool isX11Client() const;
+
+    /**
+     * @since 5.15
+     **/
+    bool isPopupWindow() const;
+
     /**
      * Can be used to by effects to store arbitrary data in the EffectWindow.
      *
diff --git a/libkwineffects/kwineffects.cpp b/libkwineffects/kwineffects.cpp
--- a/libkwineffects/kwineffects.cpp
+++ b/libkwineffects/kwineffects.cpp
@@ -776,6 +776,9 @@
 
     EffectWindow *q;
     bool managed = false;
+    bool waylandClient;
+    bool x11Client;
+    bool popupWindow;
 };
 
 EffectWindow::Private::Private(EffectWindow *q)
@@ -795,6 +798,10 @@
     // an instance of Deleted becomes parent of the EffectWindow, effects
     // can still figure out whether it is/was a managed window.
     d->managed = parent->property("managed").value<bool>();
+
+    d->waylandClient = parent->inherits("KWin::ShellClient");
+    d->x11Client = !d->waylandClient;
+    d->popupWindow = parent->property("popupWindow").value<bool>();
 }
 
 EffectWindow::~EffectWindow()
@@ -992,6 +999,20 @@
     return d->managed;
 }
 
+bool EffectWindow::isWaylandClient() const
+{
+    return d->waylandClient;
+}
+
+bool EffectWindow::isX11Client() const
+{
+    return d->x11Client;
+}
+
+bool EffectWindow::isPopupWindow() const
+{
+    return d->popupWindow;
+}
 
 //****************************************
 // EffectWindowGroup
diff --git a/shell_client.h b/shell_client.h
--- a/shell_client.h
+++ b/shell_client.h
@@ -166,6 +166,8 @@
 
     void updateColorScheme() override;
 
+    bool isPopupWindow() const override;
+
 protected:
     void addDamage(const QRegion &damage) override;
     bool belongsToSameApplication(const AbstractClient *other, SameApplicationChecks checks) const override;
diff --git a/shell_client.cpp b/shell_client.cpp
--- a/shell_client.cpp
+++ b/shell_client.cpp
@@ -1768,4 +1768,15 @@
     surface()->setOutputs(clientOutputs);
 }
 
+bool ShellClient::isPopupWindow() const
+{
+    if (m_shellSurface != nullptr) {
+        return m_shellSurface->isPopup();
+    }
+    if (m_xdgShellPopup != nullptr) {
+        return true;
+    }
+    return false;
+}
+
 }
diff --git a/toplevel.h b/toplevel.h
--- a/toplevel.h
+++ b/toplevel.h
@@ -210,6 +210,11 @@
      */
     Q_PROPERTY(KWayland::Server::SurfaceInterface *surface READ surface)
 
+    /**
+     * Whether the window is a popup.
+     **/
+    Q_PROPERTY(bool popupWindow READ isPopupWindow)
+
 public:
     explicit Toplevel();
     virtual xcb_window_t frameId() const;
@@ -443,6 +448,15 @@
     template <class T, class U>
     static T *findInList(const QList<T*> &list, std::function<bool (const U*)> func);
 
+    /**
+     * Whether the window is a popup.
+     *
+     * Popups can be used to implement popup menus, tooltips, combo boxes, etc.
+     *
+     * @since 5.15
+     **/
+    virtual bool isPopupWindow() const;
+
 Q_SIGNALS:
     void opacityChanged(KWin::Toplevel* toplevel, qreal oldOpacity);
     void damaged(KWin::Toplevel* toplevel, const QRect& damage);
@@ -846,6 +860,20 @@
     return *it;
 }
 
+inline bool Toplevel::isPopupWindow() const
+{
+    switch (windowType()) {
+    case NET::ComboBox:
+    case NET::DropdownMenu:
+    case NET::PopupMenu:
+    case NET::Tooltip:
+        return true;
+
+    default:
+        return false;
+    }
+}
+
 QDebug& operator<<(QDebug& stream, const Toplevel*);
 QDebug& operator<<(QDebug& stream, const ToplevelList&);