Alright, thanks for your answer!

Thanks for your answer and your time :)

I assume an account getting banned is the same as an account getting deleted?

I’ve already seen some federation issues such as votes on posts/comments not matching between instances, or some comments not appearching

Nope, but that might indeed be a good way to start! I’ll start reading but I’m not sure I can find the exact information I want in an easy to understand way