For 90+ percent of Windows-only games I wanna play, the process for getting them to work on Linux is the following:

1. Hit the download button in Steam

2. Wait for it to download

3. Hit the play button

Granted, my taste in games doesn't include things like generic AAA first person military shooters, which are the ones which tend to be the most difficult to get to work due to stuff like anti cheat. But it sounds like your taste doesn't include those either,

and for me, the one (rather niche, I might add) game that didn't "just work" was working just fine after trying a different Proton version - which is literally as simple as opening the "Properties" page and using a drop-down menu.