I guess it was a part of the fashion of those times. I do not think many Russians still have rugs on the walls. Also, now only Russians liked that. I saw several photo sessions in some Slavic countries like Poland, Macedonia. People took pictures with those rugs in the background. That looks crazy but funny. They wear true fur and have bright make-up. I have seen such Persian rugs on
https://www.dorisleslieblau.com/. I am not sure they are the same, but look very similar. As that gallery has a big authority in the world of rugs, all those rugs might be original.