While there is no single official "Microsoft Store link" for a 100% save, the community relies on several trusted repositories and guides:
This folder is hidden by default—you will need to enable in File Explorer's View menu to see it. forza horizon 5 100 save game microsoft store link
Temporarily disable cloud saves. Alternatively, you can play your game while completely disconnected from the internet during the save-swapping process. Step 2: Locate Your Local Save Folder While there is no single official "Microsoft Store