Thank you for your advice. I agree that group dynamics are most likely very hard and can be super frustrating for him, and maybe that causes his disruptive behaviour.
As an Autistic person, thanks for going to the effort of trying to understand this dude and find a solution. It mostly sounds like he’s just an arsehole, and it shouldn’t be your responsibility to teach him how to work in a group or communicate needs he might have, so yeah, thanks for making the effort.