PROTON_USE_WINED3D
Replaces DXVK with WineD3D, translating Direct3D to OpenGL instead of Vulkan. Used to work around Vulkan driver bugs or games that misbehave under DXVK, usually at a cost in performance.
PROTON_LOG
PROTON_NO_ESYNC
WINEDLLOVERRIDES
PROTON_FORCE_LARGE_ADDRESS_AWARE
PROTON_NO_FSYNC
VKD3D_CONFIG
RADV_PERFTEST
DXVK_HUD
VKD3D_FEATURE_LEVEL
WINEDEBUG
MESA_GL_VERSION_OVERRIDE
PROTON_ENABLE_NVAPI