Seems like NVIDIA are going all-out for the upcoming 470 driver series for Linux. As they've stated that finally async reprojection will be supported on Linux. Not only then will we be getting hardware accelerated GL and Vulkan rendering with Xwayland, plus DLSS was recently announced for Proton - we're now going to hopefully see a better VR experience.
This has been a long time coming! Async reprojection works for AMD GPUs on Linux but NVIDIA just left us out. This is the reason why Valve themselves had been recommending an AMD GPU for Half-Life: Alyx on Linux, as it's a big feature to be missing out on.
What does it actually do? Well, performance for games in VR is seriously important, more so than traditional gaming. FPS and frame timings issues are seriously noticeable and could cause sickness / headaches and more, as well as just not being a good experience obviously. Async reprojection helps a lot with that so if the game or application falls below the target level FPS needed, your head tracking movement and input will still seem to match up and be smooth enough.
It's sounding pretty exciting. Can't wait to get our hands on the 470 driver now.
Hat tip to DASPRiD.