The hard part of politics is drawing hard lines. But I think many would say it’s authoritarian at the point when a government is enforcing a specific ideology with force and violence, and limiting personal freedoms.
I personally don’t understand how someone can be authoritarian and communist when communism is classless, but to be authoritarian there must essentially be an authority in a separate hierarchical class. But I also likely have more to learn so feel free to correct me
If nobody talked about it, how do you know it was normal behavior?