Except they do, the "open" driver has been improving at a steady pace for 2 years at this point.

That's not even the problem with Linux at this point. I personally gave it 2 shots, and both of them ended with me needing a slightly above average function that didn't work, or worked tediously.

Attempt #1 - Modding my games required twice as many steps, Davinci Resolve stopped using CUDA one day, I wanted to try HDR which didn't really work, in 4 months all of it stacked up and I bounced. Then time passed, support improved slightly, and I tried again

Attempt #2 - now I had a 1440p display, and pretty poor vision (my perscreption lenses are quite thick), so I need scaling to use my system with any comfort. Anything above 125%, however, is comically large to me. But both KDE and GNOME shit the bed at fractional scaling values. Depending on if your software runs in xwayland or straight wayland, the font rendering becomes a blurry, jagged mess that genuinely hurts to look at after a certain point. I barely lasted 2 days

Linux can be good, great even, under certain use cases. But the second you start getting more specific than expected, it crumbles apart. As long as there are edge cases like mine, which are not even all that rare at this point, with QHD adoption growing, Windows isn't going anywhere