Re: Steam stopped counting hours of game, playing status and Steam in-game tab
@eliasimple I don't think you need to format your computer, certainly not at this point. There are plenty of intermediate steps you can take, including reinstalling Windows without wiping your data, but we're nowhere near that.
The first thing to try is to disable Game Mode and Game Bar entirely. They're both under Windows Settings > Gaming.
If that doesn't help, please let me know whether you can reliably make the overlay work if you restart your computer and immediately launch Sims 4 from its desktop shortcut. It may be that some process from Origin or Steam isn't quitting when you close them and the game; a restart closes everything.