plug in USB cable, drag and drop entire directory from one drive to another with file explorer, is the only reasonable way to manage photos. Get everything off the device at the end of each day. Why would you ever put things back on the phone?
Ah yes, let me just walk home for 20 hours instead of taking a train because I need to first transfer the pictures I took on a trip to my computer before I can install the local transport company's app to get home now that they removed ticket machines from platforms and are telling people to use their app to buy tickets...
I can think of various solutions (from companies not requiring an app in the first place to inserting an SD card) but suggesting that people simply not store user data on their phone is a new one