I like your playstyle that can move on and enjoy new things without worrying.
I don't know how your save and others' save can break because I haven't experienced this level of game break until now. I'm quite new compared to many people here, I start in 2021. So, I still think that just backing up a save file is enough.
But after reading your reply and previous replies, I found that I should back up "households/sims" as well. Because most of population in my game are generated townies that I edited in CAS later. They don't have a backup in the Gallery manually. They are all important to me, so backing up will help me be able to bring them to the new save when I "have to" move on.
Saving all your lots and sims in your personal gallery is valuable. You can rebuild worlds faster.
It's wise to have several back up saves.
I don't want to rebuild the save file very soon because I want to keep the relationship of my townies in the game (I love to see them introduce themselves and become friends without my control). But I will save backup all lots and sims in case TS4 update may break the save files someday. (San Myshuno case is almost the point where I'm scared)
I have a backup save every day (some days I have 2-3 if I played a lot) unless that day I did only minor CAS edits. It's useful when I want to recheck my progress when I update stories in Google sheet.
After seeing the big change if I install L&D, I plan to saving every lots and sims before let L&D be a part of my main file. I still want to learn this pack details (and impacts) from reviewing youtube and forums. So, I don't have to play soon. Safety first! 😂
San Myshuno is Freaked due to the updates supporting Life&Death. The most recent update killed the city again.
I'm investigating the situation this morning...
Please share it here if you know something more. Or you can post the link to the bug report too.
I love San Myshuno, so it's really bad for me.
