It kills me that the game just lobs all the saves together without any way to quickly tell them apart. So I took pictures of some numbers around the city, and put the appropriate one in the stash frame in the default apartment for each playthrough.
I also hate that it creates a hundred autosaves. But whatever.
If you're on PC, there's a mod for that. Can filter by lifepath or character.
Im hesitant to play with mods, just cuz i play on the the stream deck.