None of which were Communist governments.
But flew the banner of Communists? Really?
Yes they were really not Communist at all. Not even close. They were totalitarian images of Mao, Stalin and Pol Pot.
There was no equality there at all. They were ruled by an iron fist as a result to a fragile government that had nothing to offer. One killed the educated. One held an assault on those that led the deposed regime and the other killed everyone they didn't like. This is not Communism or any kind of real government. It certainly wasn't any Communism I ever studied. The Communist theory was never accomplished and I don't believe it is workable on a giant scale.
They can call their governments anything they want. It doesn't make it true. If I call an apple bacon won't be bacon no matter how many times I say the word. .