To expand on this, when you click that install button, you get a progress bar and a notification with that progress, so you can know what's happening and where it's at.

Just got an iPad through work, and i tried to install an app - there was just a loading circle animation, without any context or information. Guess what, it didn't work (but of course it wouldn't say it isn't working, it just kept spinning for tens of minutes), i had to set up a payment method first (for a free app, Obsidian, that supports payments for extra features). What the hell? Why no error message? Why no actual status instead of a useless animation?

Similarly, on macOS, the scroll direction cannot be changed between mouse and trackpad. There is a parameter in both menus, but they switch each other.

Yes, that is terrible UX.