I personally use Matrix. I haven’t gotten very far into using it but it does have groups, text, calls, and encrypted messaging so I’d say check it out.

I’ll see if any of these steps work. Thanks for all of the possible troubleshooting steps! I’ll update you on the results.

Thanks for the really detailed explanation! This is a really nice overview for me.

I’ll try again to run the game on Steam on a few versions of Proton. If that doesn’t work, I might try relinking my accounts as another commenter suggested.

I’ve been trying to stick with Steam because Steam has been such a pleasant experience for me (besides some issues with NVIDIA but that’s not Steam’s fault) but I might have to take a look at Lutris if none of the other fixes work. Thanks for the recommendation, though!

I looked through these yesterday and I’ve tried several of these fixes with no luck. Is WINE a prerequisite to running The Sims 4 off of Steam (given that I’m using Proton for all Steam games)?