I got banned too last Novemeber too, I found out that it was due to having ReWASD installed on my work PC. Which is used for controller mapping software. I use it to test games that don't support controller natively to help devs get better controller support on their games. However, when I got home one day, and played on my home PC, I found out I was banned. I appealed twice explaining everything and they still said no. There are quite a few others that have had ReWASD on their PCs both here and Reddit and nothing was done.
Later I found out also, that there are mouse and keyboard players that use that same software illegitimately to get aim assist on mouse. So, I guess that's why it gets flagged by their anti-cheat. I just wish I never installed BF6 on my work PC during my downtime, otherwise I would have been okay. As far as I am aware, its just BF6 as I can play any other EA Game. Whether that includes future releases though, I'm not 100% sure.
Hope you get your ban overturned, but from what I saw/hear, it's never a good outcome.