Even if you last tried Linux say 2-3 years ago properly, it's quite a different world. Thinking on the rise of Flathub / Flatpak, getting apps is *so much* easier now across nearly any Linux distribution: https://flathub.org/en
That's one thing I thought we were missing some time ago, that is close to solved now.
Valve Proton has made gaming close to solved too. Most single-player games work great, but anti-cheat remains problematic.
Almost everything I play is really smooth. Hilariously, my Windows 11 install runs games worse somehow *confused*. And I've done basically no tinkering to my Linux install, I use almost all defaults...