It had its own government, ostensibly self-determined. This was shown to be true when they withdrew from the Warsaw pact in 1990.
Let's say it was occupied in the same way West Germany was occupied.
I'd say that the events in Hungary in the fifties and Czechoslovakia in the sixties show a bit of difference between NATO and Warsaw pact membership. Russian Occupation/domination is not a bad term for tge situation of Warsaw pact countries.