@p This is the case on X11, too. I've applied the patch to qt6-base from https://bugreports.qt.io/browse/QTBUG-121713, and now it works.
Apparently it is Qt bug, but whatever.https://bugreports.qt.io/browse/QTBUG-121713Still have to patch Breeze to remove the opaque black window border that got added by that finnish retard.