Since nvidia drivers do not properly implement implicit sync, this protocol not existing is the root cause of flickering with nvidia graphics on Wayland. This MR being merged means that Wayland might finally be usable with nvidia graphics with the next driver release.
Maybe if your games are Wayland native or you’re still running the 535 driver? I saw fbdev=1 as a workaround, but that made things very jello-y.
I think 535 is the only option for Wayland gaming right now, everything else is a flickery mess.