I feel it's unfair to ding Linux on this, even with the implied "slightly less".

I've had Windows as my main personal computer for practically forever, because of games. Before that it was DOS. That changed a couple months ago.

Literally just now--in preparation for this comment--I decided to try something I never tried before: I mounted my Win10 drive, picked an arbitrary old Windows game EXE (2006 "Prey" game demo), and launched it as a "non-Steam game" with just one little drop-down menu tweak... and it launched! I may get 10 FPS instead of 200, but that's more than I expected off the bat.

In the the "years of the Linux desktop" of my youth, I wasn't nearly as optimistic. In terms of more-recent games, I have little reason to keep my old drive for dual-boot purposes except for specific games that go out of their way to interfere with clumsy anti-cheat rootkits.