Unfortunately 'the majority of games' wont include whatever fotm rando game my friends are inviting me to this time. If gaming was strictly a solo activity for me I would have gotten rid of windows a long time ago.
Almost all the games I play are these random multiplayer games with friends. In my experience, proton is only a blocker around 5% of the time. I still have a windows partition for those times (and I always laugh when I boot it and am "welcomed" by their "Let's take a moment to configure windows" garbage).
Just saying, if you have the HDD space, I'd say give dual booting a shot. you'll probably be surprised how usable Linux is for gaming these days.