The main problem is political not technical. The market had been allowed to become a duopoly and too many critical things now need an app on an Android or Apple phone. The worse I know is banks needing an app for authentication for their online banking. No separate security device anymore, those are ewaste apparently.
Public EV chargers where you can only control them from an app.
Riding book at theme parks. The cases are growing. Even the app is just wrapper of hidden web page!
Frankly I think regulation is required to get competition in the market. Not the only tech one either. Why is it so hard for law makers to see monopoly in tech?