This is also a representation of where the power and profit sits within the industry. If apps were subservient to people in the UI, it would be trivial to repla

This is also a representation of where the power and profit sits within the industry. If apps were subservient to people in the UI, it would be trivial to replace them. However, successful businesses are built through preference over competitors. These businesses pay the wages of people who design systems and services that achieve this. The app stores continue to feed the platform makers and that's where we end up.