OP or any other Linux folks seeing a ban - any of you up for sending me your EA IDs or gamertag? Gave this a poke internally, but they're looking for some accounts to look into. Feel free to reply or send me a chat request. Goes without saying, but in the odd chance the ban is legit then EA Help remains the route for disputes.
Quick update: Linux folks that were banned in connection to this issue should now be good to go. Still some moving pieces, but I've been told that you should be safe to play while they continue to look into this.
As always, if your ban is not related to this issue then it will not be impacted and EA Support is still the correct route. Cheers for the flags and tags, all!