Both should work fine, just copy and paste the folder for the specific save backup inthe JKSV folder to another console/games JKSV folder and restore it.
welp, guess it doesn’t work with persona q2 or I’m still not getting it.there are specific games where this won't work due to differing save structure between regional releases or console-specific data stored in the save to prevent save sharing (both rather rare), but in general it will work without issue. Just remember to keep a backup of your old save in case anything ever goes wrong.
I copied another user’s save folder into jksv/saves/persona q2, went to titles>persona q2>save data>{save files folder} and clicked restore and it showed like it did something yet I have only my own save files to play when I boot the game TT