I’ve had issues on stock x11 PopOS using nvidia. Decent fps, but bigger drops and frametime consistency seemed horrible. I have to turn off my (mismatched) 2nd monitor for my proper refresh rate to work, but it still looked very microstuttery. I miss VRR, but I think there’s a bigger underlying issue than vsync/VRR not working. Haven’t tried Wayland yet.
Vista is the OS that taught me the desktop compositor is capable of destroying game performance and latency