The Soviet block countries were extremely anti-socialist. They were lying and pretending to be socialist to acquire power, they were actually authoritarian hellholes that never implemented even one socialist policy. I have no doubt that being raised there is why you aren’t familiar with the theory.
If you need evidence of this, look at how they treated Yugoslavia when they implemented workplace democracy, an actually socialist policy. Lenin himself even called it “state capitalism”
Well we are getting away from the topic of “profit from capital”, but I have to mention it – Yugoslavia was a shithole too although somewhat a bit less than sssr. But lets not expand here both.