As a Linux-only person I can totally acknowledge the need for Windows if you want to be a regular player of specific popular games. And maybe VR. I haven’t tried it recently after playing a ton of VR a few years ago.
But I can also point out the fact that I probably already own more games than I will ever finish in my adult life, and just in case I do there are also more games released every year that work on Linux that I could ever play. So if a game will not work in Linux even with proton and whatnot, my life is not negatively affected by that game not existing in my world. (I’ll admit I probably didn’t always think this way, but for a long time I still ran Windows and didn’t think about it either way)
Seriously. If you’re used to fiddling with Windows and especially if you have installed Windows recently, go try something like Linux Mint. Just the install process will blow your mind. And then wait until you get a system update and it doesn’t affect what you’re doing!