I just found a way to transfer save file from season 1/2 to 3 using your OWN save files if you download the game here:
1. Have both game on steam as non steam, this way easier to look at save files
2. On season 2 at the end save the game where dev told you to save, the transfer page or something
3. Turn on and then close both season1/2 and season 3
4. Now I’m using steam deck so my path way is different but for me is what Home/.local/share/Steam/steamapps/compdata/ (pc or steamed deck you want to be in compdata.)
5. While in that folder/directory (samething) there should be a search function at the top search for renpy
6. Unless you have other renpy game you should see only a few Renpy, I have steam deck so I can use the arrow down to check file names, on pic you should be able to click on them, only check Renpy not renpy
example: (yes I know I like Adult VN)
7. click on persistent of beingadik, and copy it to beingadik3 just like so
Example:
boot up beingadik3, import files, there ya go if it help let me know.