I imagine I'm not the only one annoyed with the unlabeled buttons in the new Photos app in iOS 18 (assuming the design is the same in iPadOS 18)... I figured out how to make those unlabeled buttons disappear on the main screen of the app, and it's quite easy to do. To do this, scroll all the way down to the bottom of the screen after opening the app& double tap on the Customize & Reorder button. When on the next screen, double tap on Pinned Collections to deselect it, then double tap the Close button at the top of the screen & those pesky unlabeled buttons go away on the main screen of the Photos app like magic. Hope this tip helps someone out there.