Interesting results, in a nutshell it seems like Wayland/Xwayland performance on both nVidia and AMD wins slightly more than it loses. Once VRR is live in nVidia 545 series driver, for 3D games, Wayland is looking to deliver a great experience. Performance when Wine’s Wayland code is ready to mainline will be very interesting given that Xwayland needs will be negated at that point.
Good to see both AMD and now Nvidia are performing well in Wayland. My experience has been that AMD loses nothing in performance on XWayland for the last few years and nice to see that confirmed.