Khrushchyovkas. They were really. huge step up for lives after the war. The USSR was in such a bad place in the mid-late 20th century because they were the hardest hit in WW2.
Ive watched a few Russian TV shows on Amazon that show what life was like in some of them
I just cancelled my month lomg 50th Birthday trip set for next month. I rebooked for September. Hopefully we can go then instead. My best friend just moved from London to Newark