Fortunately, this fucking windows partition I only keep for VR with my shitty Oculus Rift CV1 reminds me how fucked up the alternative is. I can't fucking wait to get a Steam Frame and ditch it.
mesa is a package that contains vulkan and opengl implementations like radeonsi, r600, iris, crocus, anv, radv, nvk etc. the drivers that are in the kernel such as radeon, amdgpu, xe, nouveau, nova, i915 are gpu spport, general performance, power managment, fan control etc.