You can come up with the details on the kind of collapse.
A confederation of autonomous zones run horizontally under anarchist principles, a la Rojava, the Makhnovshchina, Catalonia, etc etc. Presumably for many types of collapse, there'd be a gradual period where the government just cuts off services to increasingly populated areas and abandons them. Autonomous zones like these could spring up to fill the void, and eventually be better than what they're replacing.
Basically high tech elves. Having passed through a self imposed disaster, humanity faces it's destructive greed and overcomes it, achieving a profound integration with nature, while retaining the technical knowledge of the past. The new culture is stable and long lasting, and heals the blighted areas of the planet. The ecosystem becomes more resilient and more abundant than ever before.
Hold your empty disemboweled gas tanks up high
Turn them into a bong or a still
Rootin' through the gas stations
Tilling up our backyards
That's my rosy picture of the End Times, my friend- from "Floodwaters" by Defiance, Ohio, though the song doesn't stay rosy for long
I was thinking societally.
You know that part in 12 monkeys where plant life has overgrown all the buildings and animals are free to roam our cities? That one.
