I would unironically recommend arch to anyone who has a large steam library, and id recommend KDE Plasma as the desktop. Valve uses Arch as a base, and KDE as their desktop mode environment, so a lot of games on steam are tested in this environment via proton.
I would not recommend it to newcomers to start with, but as a “learn about linux and work your way towards arch” type of ordeal. Arch would be the endgoal, not the starting line.