Comment # 17 on bug 1090456 from Michal Srb

You identified that the fix is somewhere between Mesa-18.2.2 and current git
master. That is great.

A shot in the dark: It could be fixed by d179312b "radv: add a workaround for a
VGT hang with prim restart and strips". According to the description it fixes
hangs with with some games using DXVK. By the way, my guess is that the reason
why it now happens with some games under wine, but not with native games is
that most games under wine use DirectX translated to Vulkan, while most native
games still use OpenGL.

Could you try with Mesa from this OBS project?
https://build.opensuse.org/project/show/home:michalsrb:bug1090456:X11:XOrg