https://bugs.winehq.org/show_bug.cgi?id=51081
--- Comment #9 from kolAflash kolAflash@kolahilft.de --- (In reply to Zhiyi Zhang from comment #8)
This is caused by bugs in Mesa. Upgrading mesa-vulkan-drivers from 20.3.4-1 to 20.3.5-1 in sid fixes it. [...]
Thank you very much!
Looks like there's already a similar bug related to Wine and asking for Mesa-20.3.5-1 in Bullseye. (Bullseye = currently Debian-11 Testing and may become Stable in June 2021) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983390#17