I didn’t want to make my initial comment just about anecdotes / make broad assumptions based on my own experience…but in my own experience, I have one Nvidia-only desktop and one Nvidia/AMD-hybrid laptop, and both are borderline-unusable in X11 (bizarre graphical glitches, the X server hangs up for ~20 seconds when starting any program), and both work near-perfectly in Wayland (occasional glitches in some apps, but overall crisp and smooth).
So, I was just thinking that consolidation of the known issues would help the broader community (with a broader variety of hardware and software permutations) pin down the specific setups that are causing trouble / creating the perception that Nvidia + Wayland + GNOME isn’t “ready”, and also test whatever potential changes would be needed.