Suppose you're doing gig delivery. You're delivering to two customers in the same neighborhood on the same run. You drop the first order, take your photo of the drop, and the app spins. It's waiting for the photo to be delivered before it moves on. You can't get directions to the next customer until the app moves along. Why can't it just take the photo, take the text description, and hold that until service is better? Just give the driver the map, and upload the other stuff when you can.
I have similar issues with every app. It seems like every user interaction, every button press requires a round-trip to the server before the app moves to the next step. There's no reason for this. I wager that every app can keep its UI and the user's data locally, and send and receive teensy data updates.
But all "the best" software development employees (that they claim their hiring process hires) in these companies can't seem to work that out.