My bias is ten years of Android before I switched to iOS, and I failed spectacularly to select multiple images in the Photos app and delete them. It seemed to work sometimes, and sometimes it would only drag the picture under my finger until I noticed a "Select" button in the upper right corner. Doing the same thing in the Google Photos app for iOS is so much easier, and it just works.™

Text input and editing are still my biggest hurdle on iOS. I make more typos than on Android, and editing text in input fields is always a strange experience. Selecting single words and correcting some letters still feels "alien" after over a half year on iOS.