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You mean this Weyland "support"?

"October 26, 2017"

I'm not coming out and saying it's gotten significantly better, but that is a three year old article and Nvidia-wayland does work on KDE and Gnome.

That's because they implemented egl streams, nothing has changed majorly since then. There's been a lot of talk, but no action towards unification. The ball is entirely in Nvidia's court and they continue to work together on this.

The funny thing about GBM vs EGLStreams, though, based on everything I’ve read online, is that there’s broad agreement that EGLStreams is the technically superior approach - and that the reason it’s been rejected by the Linux graphics devs is GBM, while inferior, has broad hardware vendor support. Apparently very few GPU vendors outside the big 3 had decent EGl implementations.

That's not true. EGLStreams would be better suited to Nvidia's proprietary driver design, but it's technically inferior. This is the "broad agreement". No one but Nvidia wants EGLStreams, or we would have implemented it in other drivers.

You know I did a bit more reading about this, and it sounds like you’re right. There’s a great discussion about it here:

https://mesa-dev.freedesktop.narkive.com/qq4iQ7RR/egl-stream...

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