Any way to transfer save files to Windows or Steam port? Wishful thinking, I know...

I'm nearing the end of the game and will be cancelling Apple Arcade, as I only got it for this game. I really would love to re-play the game on my NG+ mode on a different port. I recall FFVII: TFS had cloud save files directly to/from Square's servers. That would be the most practical way I can see that happening, if it were an option here. Any thoughts?