I use Linux and windows... So that doesn't make sense. I use both of them heavily... I'm triggered by people just saying "windows bad" without any nuance to what it's good at. If you have a screw, you need a screwdriver. Your hammer is a poor tool for that. If you want to play games, you most likely want to boot windows for that. Which is what OP stated as a primary task.
Discussion
I've been doing Windows and Linux support & sysadmin work for one 20 years, I also use both. I disagree with your view. For lots of people Linux gaming works great these days, and continues to improve. I guess we better tell all those Steamdeck owners that gaming on Linux doesn't work 😂
Never said it didn't work. I said performance would not be anywhere near comparable on the same hardware for most games. Steam OS is optimized to play steam games. Obviously an operating system built to play games plays games well...