> one drive Mac OS does come with a fairly deep iCloud Drive integration, and iOS defaults to backing up photos and files then tries to upsell to a higher pack

> one drive Mac OS does come with a fairly deep iCloud Drive integration, and iOS defaults to backing up photos and files then tries to upsell to a higher package when space runs out. It's only fairly recently that iOS shipped with a dedicated file manager, instead making you store any documents you have either in individual apps or on iCloud Drive.