China and the USSR were as Communist as Nazi Germany was "Socialist" or North Korea is a "People's Republic". Those movements perhaps started out, especially in Russia, with such aspirations but they were quickly hijacked by self-important opportunists like Lenin who essentially implemented "State-Capitalism". Just Capitalism but now the state owns all the private industries and runs it. Sure, they create a perhaps robust welfare state in some cases but same old tyranny with the USSR political elites mirroring a sort of Bourgeoisie.
There is no Communism in Russia
There was no proletariat owning the means of production in the USSR, no absence of money and certainly not a classless society. The closest human beings have ever come to such a society since the discovery of agriculture is, well, pre-agricultural societies:
Did natural selection favor individualists or altruists?
evonomics.com