I remember my dad having to travel to Moscow during the Soviet times to get the censor's approval for the movie he was planning to shoot (that is on top of budget-related issues etc.) I was still very little then, but from what little I remember, it seemed like it always was a guessing game: how much do you have to add of glory to the proletariat in order to make the cut. Naturally, artists were turning their noses when they saw too much of the Soviet propaganda in a movie, so, they tried to put as little of it as possible, at the same time using all sorts of tricks to disguise the criticism of the system that required the censorship.
And while this kind of little struggle had its fun moments... overall, I don't think it was fun. Also, indeed the rules of what's allowed or disallowed would change based on current political events, and just like in 1984, everyone was supposed to acknowledge that the rules had always been the way they currently are. Which, in terms of long-term planning, would sometimes result in problems. Like, when someone was trying to placate the censorship by overemphasizing some political aspect at the time of submission, but the events developed so fast, that the official party line at the assessment time was the exact opposite of what it was at the submission time.
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Oh, and just to give some examples of when the "proto-woke" (in Soviet times it was called the "decadent capitalist influence") had some tragic consequences.
The only acceptable painting style was Soviet Realism. Anything that had signs of deliberate distortion of color / perspective / size / anatomy etc. would be labeled "decadent capitalist" and perpetrators would be prosecuted.
So, another student in my dad's class came in drunk to a model drawing session. And instead of using a graphite pencil, used what was called a "chemical pencil", which is a kind of Indian-ink based pencil (it's practically impossible to erase). And, in a study of a head of a model, that student made several strokes that extended beyond where the area of the nose would've been, and so it looked like the model had whiskers...
That student was later taken away to the dean, and in short time was expelled.
Another student was expelled for wiping his paintbrush on the canvas (which he later planned to cover with some neutral background color, but was too late...) because he forgot to bring a piece of rug that one usually uses to wipe a brush before using a different paint.
That sounds like a fun anecdote, but those two had their lives ruined.