I run maybe five different games under GNU/Linux with WineHQ.
King’s Bounty: The Legend (had to recompile Wine and write patches to it to make the blasted game run)
Skyrim
World of WarCraft: Wrath of the Lich King
WarCraft 3 (game only, not World Editor)
Some others I probably forgot. Many refused to work or were too unstable too play.
Native to GNU/Linux:
VCMI (Heroes of Might and Magic III)
OpenMW (Morrowind)
Wesnoth
With Steam Proton it should be much easier to run games on Linux now. (In)famous gaming YouTuber and streamer switched from Windows to Ubuntu to play and stream Skyrim and some others with Proton.
But generally I wouldn’t recommend GNU/Linux for gaming.
No, I’m using it to run server based applications mostly. Moodle dev environment for my wife (she’s an online teacher), MariaDB, etc. The database for my online station actually runs off a Pi3 with Raspbian and MariaDB. It’s shockingly stable and has miniscule power requirements. I’ve gone to fanless PCs with SSDs for my automation to save on power.
All games will never run perfectly. If there is no interest in GNU/Linux gaming then there will not be games made for it to begin with.
Better decide what you want to play. Then check if there is a GNU/Linux port available on Steam with Proton (which depends on WineHQ to my knowledge). If there is, install some popular distribution with dual boot. Advance from there with regard to progress.
Idk I never got my games to work in Wine, like Combat Arms etc. Tomb Raider and Counter Strike run as fast as Windows natively. I tried something like Proton too.
It is because of the complex and invasive anticheats.
I don’t know about tomb raider but I benchmarked counter strike and it ran a bit slower than on windows.