Almost yes to all (I don't remember if the world crashes or never load). I suspected that it was lost.
unluckily I didn't think about the possibility to recover old version of the world from Drive before the expire time.
Do someone know how to edit a drive-saved world to put there all stuff I had already? (that are almost everything available in pre-hardmode)
I'm trying, but annoying.
Using a "bug" it's a little quicker: doing a backup of the user and so duplicating the stuff (and having luck with the Traveling Merchant and the chests)