Gnome are in the process of implementing it. KDE have it.
But like I said, it would most likely be in the GPU driver side, at least with nvidia, don’t know about AMD.
Also don’t know the effects on the proton/wine side in which they are also working on, to be released in wine version 10, with bugs fixed.
Here is where I described a similar behavior in between X11 and Wayland, which could be related to the GPU driver only or possibly hidden mix between DE and GPU.
This is where it could be related to this in the DE. Because it is disabled on X11, not sure how it works on Wayland. But in the end, it is just noticed patterns, I am unsure if it’s an actual problem or not.
If the problem were to be on the DE, it could be that the implementation are not completed/finished, just as VRR on wayland can be laggy / buggy.
I have all that are known, set to disable gsync / vrr / vsync, yet it doesnt have an effect on wayland.