Make a comparative description of the development of culture in the 20-30s of the 20th century in the USSR

Make a comparative description of the development of culture in the 20-30s of the 20th century in the USSR and foreign countries. Were there any similarities? What were the features of Soviet culture?

For the European culture of this period, features of experiment are characteristic, artists tried to find new forms, which made it possible to develop, for example, cubism. Art in Soviet society in the 1920s was also a time of bold experiments with forms and content, which had a tradition since the Russian Empire and received a new proletarian breath already with the arrival of the Bolsheviks. However, since the 30s, during the Stalinist modernization, Soviet art has been unified, the genre of socialist realism has become the leading genre, while Europe had greater diversity.