Same thing happened to me and I think I have a solution. You need to turn off “Live Text” in Settings, then reset phone and do Quick Start ios transfer of original phone to new phone. After Quick Start ios transfer check Settings again to turn off “Live Text”. After confirming live text is set to be off, you may open photo app. This worked for my new iPhone 13. When I bought my new iPhone 13 it initially looked like all my photos transferred fine and data size was same as my old phone’s photos which was 5.6 GB. But after exploring my phone and looking at my photos and touching a photo in a way that activated the “Live Text” ability to highlight text in a photo, I soon noticed my phone’s photos now showed as 11.9 GB even though there were no new photos. This meant my photos data storage size doubled. The Live Text attribute was automatically applied to all photos without giving me any kind of warning that activating the live text feature would double the data storage for the Photos App. I have not discovered a way to undo Live Text data size change, however I did discover that doing a factory reset of my new phone and transfer my old phone data to the new phone again but this time making sure to turn off Live Text by going to Settings, click on General, click on Language & Region, and turn off “Live Text”, then open photos app and all my data sizes will stay the same as my old phone. Live Text works only on iPhones XS, XR, 11, 12, and 13 with iOS 15 installed. For people who have iPhones XS, XR, 11, and 12 i suggest immediately after doing the iOS 15 update to turn off “Live Text” in Settings prior to opening any photos unless youre okay with doubling the data size. If you already activated live text that doubled your data size and you want to “undo it”, try Restoring iPhone From Backup so all your old photos and settings are returned to normal, then do update and immediately turn off “Live Text” in Settings. Good luck and best wishes.
