How to save all files to iPhone’s local storage
How can I choose iPhone’s internal storage as the default storage for all files
iPhone 11, iOS 15
Everything is stored in the iPhone's internal Storage (Including App Data) only unless you have chosen to save it on Cloud Drives. Is there any data which does not open or show when your device is not connected to the internet? Probably no. Then where is the data? On the iPhone!
I am not clear what exactly you are looking for.