Now I have a form of WSL (LSW heh). There is a reason why everyone on windows uses WSL these days, same concept applies for LSW, but for games.
In a gaming-only setup, Windows requires virtually no maintenance. Plus gaming itself is a monotasking activity.
I actually find it positive having to reboot, so I start with a gaming session, and I only play, and when I'm done I'm done. I get the appeal of everything-in-Linux (it was my setup) but it's also a hassle.
This is not remotely true anymore with Windows updates automatically restarting computers, windows updates pushing breaking changes especially in regards to GPU drivers, and more anticheats requiring secure boot.
Besides that, the root discussion is having a dual boot vs a virtualized windows; maintenance applies the same to both, it doesn't disappear when virtualizing Windows - the different is (the value one places) to context switching.