Wayland support hasn't been an issue since GLX was depreciated for EGLStream. I think the Nvidia backend has been "functional" for ~3 years and nearly flawless for the past year or so.

Both Mutter and KWin have really good Nvidia Wayland sessions nowadays.

It got better, but my point is how long it took to get better. That's the indicator of how much they care about Linux use cases in general. Which is way below acceptable level - it's simply not their priority (which is also exacerbated by their hostile approach to upstreaming).

I.e. if anything new will need something implemented tomorrow, Nvidia will make their users wait another decade again. Which I consider an unacceptable level of support and something that flies in the face of those who claim that Nvidia supports Linux well.