I was just banned by EA/DICE for cheating, hacking or exploiting in Battlefield 2042. I'm not sure which, as I did none of those things (or if I did, I wasn't aware of it - but I expect it's unlikely that you can accidentally break those rules). After asking support for more information, they listed the same reasons that were originally emailed to me - cheating, hacking or exploiting the game. No further information given.

Luckily I bought it on Amazon so I'll be refunding through them, and I expect my Origin account to be banned as a result - however it sucks to deal with these hardline policies with zero transparency when you're on the wrong side of the algorithm.

EDIT: After reading more about false-positive bans, it seems these days having the wrong driver installed (as some hacks pretend to be software that communicates through that "bad" driver) or running peripheral scripts (like mouse macros) can cause a ban. I wasn't using macros and I don't have peripherals capable of running them (eg Logitech G series).