https://bugs.winehq.org/show_bug.cgi?id=6682
--- Comment #71 from Artem S. Tashkinov aros@gmx.com --- (In reply to joaopa from comment #70)
Created attachment 67431 [details] screenshot proving there is no bug for me
For me, with wine-5.10 Irfan-4.54 and plasmashell 5.18.5 everything is OK.
It starts working for me when you temporary move the window out of the screen which means the bug is still there. Maybe Plasma makes app receive additional repaint calls.