I suspect that when you install the app, it will require all the juicy permissions like contacts, and hoover up lots of data before you even begin to use it. So the damage will have been done, even though you uninstall it soon.

Last I checked (2022), it has wallet support and didn't prevent you from taking screenshots.

Likely dynamic generated QR codes. These are becoming more and more common place.

Come on, it's not meant to be user-friendly, anyone who buys that deserves to buy a bridge.