I made plenty of manual saves, quicksaves too, all were gone including autosaves, when I went to run the game again after to see what messages popped up in the actually renpy loading screen I now see it says something about "may not save properly" which it saved stuff until the page reloaded so I guess that means like with the browser cache
And y'know if that wouldn't entail too much I would be down to try and do that if you could outline what that would entail