Linux players getting banned

I wonder if it was some action in-game that triggered these bans, since the one difference between me (banned) and a friend with similar hardware and arch install (no ban) was that I played one or two games of ranked, and he played none. I played for about 40 more hours than him too though (74.8 hours total before ban, we were both new to the game).

Another weird thing is that I have been able to play on an alt just fine ever since the ban on my first account. Supposedly that means I haven't been hardware ID banned (or their HWID bans are equally broken as their anti-cheat) which might mean that the ban for cheating I got was somehow different to most cheating bans.

Personally, even though I can play the game through an alt, I am still worried that this ban will ruin my main steam account if the devs ever decide to push game-developer bans to every steam account linked to a banned EA account. And no, you can't un-link your steam account after you get banned. I was thinking of deleting my EA account entirely to protect myself (if they even let you) but I also want to keep my forum messages here up.

If anyone here has a method which might protect our steam accounts from this hypothetical scenario, please share, and best of luck to everyone new to the thread in getting their bans removed.