

I don’t think that’s the good idea even if possible to do with env variable. This should just work correctly, you either miss something in your system or hit some nasty bug of your distro/build or it’s general KDE bug
I don’t think that’s the good idea even if possible to do with env variable. This should just work correctly, you either miss something in your system or hit some nasty bug of your distro/build or it’s general KDE bug
Do you mean PROTON_USE_WINED3D=1 ? If so, you don’t have Vulkan compatible hardware (GPU from like before 2012) or missing drivers. With this flag you use OpenGL rendered instead, that is inferior in every way. If you try it on modern hardware with the right driver in place you’ll get much worse performance, if it even works. This flag shouldn’t be promoted generally.
If you run ancient GPU and want to always fallback to OpenGL, you can put the line
PROTON_USE_WINED3D=1
in /etc/environment
and reboot. No need to set that in properties for every individual game.
It should also be enabled by default for many games that does in fact have Linux native build.