The “transitional phase” definitely isn’t communism, and I would argue the term was co-opted by people as a pretext to execute different ideologies…especially in the examples you’re using. The word communism is used as a weapon by too many. You can’t just say “The USSR was bad because of communism, end of story”, for example. It was never communist, and I would argue it eas never trying to get there.

It’s absolutely wrong to call those countries communist. Each example is different. When authoritarian states use labels…they’re generally meaningless. Is North Korea a republic? Was The Soviet Union?

You’re using all these fraught terms like “socialism” and “liberalism” incorrectly. You’d be far better off by defining your terms, rather than just throwing them around. I mean…you don’t really sound like you know what you’re talking about. The Nazis rose out of National Bolshevism, after all.