Linux players getting banned

Same problem. I use both a Steam Deck as well as an Ubuntu 22.10 desktop using the default Proton version provided by Steam and no custom launch options. I can get into the home screen to select which mode to play. As soon as matchmaking is complete and loading screens are passed I get the same "The client's game account has been banned: Banned" message. This account ban problem isn't isolated to Proton-GE.