https://bugs.winehq.org/show_bug.cgi?id=50982
--- Comment #5 from Lorenzo Chiola giradischi0001@gmail.com --- I have IceWM over X11. The wine package is this one, mainstream. https://archlinux.org/packages/multilib/x86_64/wine/
The problem manifests itself only if "Emulate a virtual desktop" is disabled and "Allow window manager decorations" and "Allow window manager control" are enabled.
Based on your words I tried another window manager (spectrwm) and the issue is not present using that.