SUMMARY On Wayland, dialogs have the normalWindow property set to true and dialog set to false. On X11 it's the opposite, which is the expected behavior. Additionally, their windowType property is set to 0. On X11 it's set to 5, which is the expected value. When I refer to properties, I mean the properties that are exposed in the Kwin Javascript scripting API. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.109.0 Qt Version: 5.15.10