i am not sure with one drive folders but saves on windows will be in app data- renpy- lucky Paradox folder. That’s where all your saves are stored and allows them to carry over to the next update.
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Actually, not.. but:
C:\Itch Games\lucky-paradox\Lucky_Paradox-v0.7.5-pc\game\saves... But yeah, made already symbolic link, it's just a little nuisance that this game requires other manual linking.
But now it works perfectly fine - and saves are for me in sync with OneDrive (kinda feels like cloud save :D )