

I sincerely doubt the anti-cheat is why Wildgate failed. It’s a multiplayer extraction shooter, that’s just a tough market to break into, and their gamble didn’t pay off.
Sunderfolk on the other hand, you’re probably right. A digital tabletop RPG, made for couch coop (although you can play solo and just control everyone), that you need a phone/tabled app for? And it’s $50/50€? That was never going to be a massive seller.
Looks like this actually works on Linux. Steam Deck rating is Playable, with ProtonDB rating as Gold. Not that this changes the other part, where the game doesn’t look interesting to you.