At this point, making something that doesn’t work using Wine or Proton is actually kind of an achievement, so congrats EA, you managed to fuck up both Origin and EA app. The actual game runs flawlessly, it’s the launchers that are all kinds of broken.
I’ve played the Sims on Linux before and haven’t had such severe issues with origin…
Out of curiosity I’ve looked it up on ProtonDB and there it says that EA Launcher regularly breaks on updates.