I was at around 55 hrs during endgame, which was finishing the main story line after doing most of the side quests. I think I had 1 main base with 10 - 20 buildings and equipment. I was playing on a series S. I am boggled you didn’t have many crashes, I’ve seen hundreds of reports of similar issues when I was trying to figure out what was going on.

Endgame was brutal. It was a 50/50 chance if you paused to save while moving it would crash.