If you need VRR on a Wayland environment, you might want to try Kubuntu or the Fedora KDE spin (as examples). There’s also Sway, but a tiling WM may not be what you’re looking for.
VRR isn’t currently implemented on GNOMEs mutter (though it is actively being worked on).
You can patch mutter with the VRR work yourself (using a copr on Fedora, and perhaps a PPA on Ubuntu), though I wouldn’t recommend it.