Asking for recommendations of fiction books with a communist setting. Ideally with a “show don’t tell” narrative structure. That is, communism exists and works fine but the author does not say “this is communism”. Just existing in the background like any other normal thing.
Andromeda Nebula by Ivan Yefremov takes places on future communist Earth. His Hour of Bull also takes place in this setting, although it is more about Earth’s expedition to an another planet, where descendants of colonists have managed to preserve capitalism.