I apologize if this isn’t the correct place to make a suggestion for this (I’m new to these forums).
There could be a feature by which the user can add keyword(s) to a photo on their phone / within their own photo gallery, and the photo gallery could have a search feature in which the user can search by keyword. There could even be a way to sort photos by category based on assigned keyword (s). I realize there are albums by which to sort, but it takes longer to add photos to a specific album and most people aren’t going to do that in real-time. I know plenty of people who will snap a photo of something so they won’t forget it (for example, a password, a new wine that they like, a shopping list, etc.) If there was an option to quickly type a keyword or 2 about it, the user could later go to the photo gallery, type “shopping list”, and the photo would be much easier to find.