For the most part it works really well! 90% of games on steam work without any hassle and the 10% with errors have workarounds. It’s not perfect but it’s definitely getting better as time goes on, especially with more anticheats having compatibility with linux than 5 years ago. When it comes to standalone games, it can be a mixed bag because sometimes it works perfectly and other times it doesn’t, but launchers like lutris help get the games that don’t work run decently. When it comes to emulators, they work really well, sometimes better than running them on windows, but keep in mind where you’re getting them. I have less issues overall with the flatpack variants of emulators.