Connor Abbott who has been working for Valve over the summer on the RADV Vulkan driver sent out one of his last patch series before going back to school: VK_AMD_shader_ballot for RADV. This extension paired with other work allows DOOM on Wine to run through an AMD-optimized Vulkan code path…

Source: Phoronix – VK_AMD_shader_ballot Support For RADV, Lets DOOM Use AMD-Optimized Code Path