I'm sure for some users it's acceptable, solid even, but I know several people, including myself, that keep hitting edge cases and invisible walls when on Windows these games "just work". And no, it's not about kernel anti-cheats or any other DRM.
I recently started dual booting Linux again and tried both Arch and CachyOS. Former with Hyprland, the latter with Gnome just to see how well the games run. I knew going in that tiling window managers don't behave well with games and that was indeed the case. With Gnome, even some native games made by Valve had terrible performance issues where I have none on Windows. There are also cases, and I wouldn't even describe them as edge cases, that you have to tinker to get things to work properly.
I have a very basic dual monitor setup, but yesterday I spent an hour trying to fix a problem where my cursor would escape the game's window into the second monitor. The obvious solutions (gamescope) didn't work for some reason. Did I end up fixing it? Yes. But that's only because I know my way around Linux. That's an hour I'm never getting back.
I'm not making an argument for Windows, I very much dislike using it but Linux folks need to accept reality. A reality which isn't fair, but reality nonetheless. That's when you start to make progress. (Which, to be fair, they have. Tremendously so. But there's still a long road ahead!)
That would definitely save me part of that hour you lost :) But honestly, I'd trade that hour on linux a thousand times to not have to close another notification from Windows about this amazing new game they have for me to install. And I don't even have Windows 11.
Linux has quirks, of course, but every OS has them. People like to dismiss quirks on Windows because they're used to it, but a lot of the time they're worse than Linux's quirks.
If Wine doesn't work I'll run it in 86box.
Neither does Windows. W11 (or was it W10) famously broke a bunch of old games. Running Windows games from the 90s is easier on linux than on Windows at this point.