I also did dual boot for 'da gamez'... but then found that I've never had to boot into Windows for any game whatsoever. It's been a few years now. So apparently I didn't need dual boot after all.
From the system itself - stability and compatibility with my peripherals
I know that Proton is the thing allowing games to run smoothly on Linux, but the fact it's an OS made specifically for gaming, used on a pretty popular handheld will give the devs more incentive to make their stuff well out of the box
Kinda same. Using windows only for League of Legends. Yes, I am hooked on that. Best thing I can do is find other games to take up some time.
I just installed ZenlessZoneZero via sleepy launcher yesterday on my Mint install. Time to dive into those gachas!
I've switched to DOTA 2 after the infamous butterfly trailer, which was about 2 years ago. I like it more than League now, though it's a shame DOTA doesn't have 2500MS Singed equivalent. To be fair, Primal Beast and Centaur Warrunner can get close, but nowhere near poisoning the whole teamfight and running away before anyone can process what has happened.
Steam os is going to be neither better or worse than anything else Linux based.
Yes, Windows 10 is EOL this year. However, if you are using it right now you shouldn't have any issues with Windows 11. Windows 10 as it is right now is much worse than 11.