The only game that I keep Windows around for is Destiny 2... I know, but it's the game my closest friends are often playing - but I've been playing it less and less so I might actually end up removing Windows completely if the next expansion doesn't go well.
Now that I have a Steam Deck, I have zero reasons to get into Windows-only games anymore.
Like 90% of everyone here already uses Linux, and those who do use Windows only use it because they are forced to because of work or some proprietary program that Linux doesn't currently have.
I use Windows because I prefer it over Linux. I mainly play games on my PC and Windows never gives me any issues. I don't need to have any compatibility layers and overall there is no hassle.
Linux gaming seems to be always a bit behind with driver support. Last time I tried it there was no HDR and it was a dealbreaker for me. This time I'd expect FSR snd frame gen is not at the same level they are on windows. My work laptop is still Linux, I boot to Linux on my personal computer if I'm doing my own projects. My homelab server is naturally Linux and so is my personal laptop... but I still do basically zero Linux gaming.