'On Android, what folders will "sync" automatically?

On iOS, there's the FILES app, and if your app writes anything to it, it'll propagate to all devices.

I notice in the Google Files app, there's a "documents" folder. If I give the user the option to save data into that folder, will it automatically sync between their devices in the same was iOS does? I'm looking for the simplest way to give the user the option to save their data somewhere that will sync to all their devices.



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