You do not know what you are talking about.

Soviet Union was one of last countries with true art. Art requires seriousness. Western art has turned into entertainment long ago. All movies are made so that you can accompany them with popcorn.

There were topis with sort of a prescribed understanding, mostly related to early history of the Soviets. There were opportunistic authors who produced politically correct slop. These fellas quickly changed course in 90s and now have mostly left for Israel. But there was also massive live stream of true art alongside all that, realistic, serious and even Christian: Russian classical culture is so deeply Christian that you pick it even in an atheistic setting.