Yes. Food in the shop had a bad quality with a permanent deficit. Big amount of good food in modern country is making by a small business
This could be a language barrier thing, but it sounds like you’re talking about a production issue, not a censorship issue.
okay, despite the cultural and resource diversity, what prevented then in the Soviet Union from making normal food en masse for people like sushi or even shawarma? Why was there only sausage and chebureks, buns, vodka, beer everywhere? Because there is an order to do so and there is a chain of manufacturers, there was no initiative from below, although the country was supposed to be for the people. Due to the size of the state apparatus for serving the population, any initiative was lost. In the end, everything was done only when the old grandfather wanted to show off in front of the West :) there is nothing made of high quality in the Soviet Union, except for missiles that were sold to other countries to shoot at people :) and everything that served the military industry.
I’m going to avoid touching the rest of that and say that a centralized production not making sushi or shawarma is not the same as censoring those things. You can still make them at home, it’s not like fish, rice, and seaweed were beyond the reach of the existing production. Again, it sounds like a production issue.