@PHVSED
You do not by chance happen to have been using an AMD Radeon RX7x00-series card with Anti-Lag+ enabled?
This triggered (false) bans on a number of accounts.
Edit: It seems like the ROG Ally in fact is AMD based and had support for Anti-Lag+ (as written in an earlier post here as well).
Edit2: I have been trying to help my son with this AMD Anti-Lag+ issue. He bought a new AMD RX7000 series card that got him banned. He is 100% sure that he has not been using any cheats or similar.
Appeals to support/ToS team has just been denied without specifying any reason and with a pretty brute standard answer. There is no reason given in the ban as well, so we are kind of starting to lose hope.
According to a post in another thread, EA can detect the bans that have been made due to Anti-Lag+, and has been "lifted all of them", but we are not so sure, unfortunately.