The best thing Valve could do is nuke Wayland/X11/Xwayland from orbit. Wayland is a mess that apps still don't support and doesn't work with NVIDIA GPUs. X11 is ancient and screen tears. Xwayland is the worst of both worlds.
Is the problem in this relationship Wayland of Nvidia? It is a shame that GPU's are pretty much the one big part of your computer that doesn't really conform to the general "ownership" model.
I don't use Linux on laptops or desktops, only servers. I've been through all that pain. The userland has a long way to go to be a good OS everyone can use.
Nope, it still sucks. It's no good as an OS for general users. The average user has no idea what it even means to have an NVIDIA GPU, let alone be able to diagnose why their screen scaling is all fucked up or understand why they see stuff about 'killing child processes' when they press the power button.
You're basically confirming the parent's suspicions. Nvidia has supported Wayland since their 550 series drivers, for the last two years desktop Linux has run fine on damn near every supported card.
You're not speaking for the "average user" here, you're speaking for yourself. We have a benchmark for what the average user thinks about Linux, and it's called a Steam Deck. You know what those users never mention? X11, Wayland, Xwayland or any of the stereotypical 2012-era boogeymen you're complaining about.
It's almost as if... you haven't used Linux in years. I won't accuse you outright, but my suspicions are mounting. (posted from an RTX 3070 on Wayland)
And that only created a problem by making the impact of that rift worse. So we don't need even more of such effects. Ubuntu tried going there with Mir, but luckily they figured out it was a really bad idea in time.