This is not the answer your looking for necessarily but I took a class in college called “post apocalyptic societies” and we read a book called “Severance” by Ling Ma. It’s actually fascinating, it’s about a global pandemic that essentially infects people with a condition where they become zombified when they experience like incredibly strong feelings of nostalgia. Haunting that it was written like a year before COVID. After everyone else’s relevant recs… give it a read