This is one of the things I worry about - a duopoly not just backed by two wealthy and shady megacorps but also effectively by law as it mandates a mobile app for some things yet the app only exists for iOS and Android & no public API is available.
The phone app is effectively used as a hardware security token.
https://www.lightspeedmagazine.com/fiction/the-shadow-prison...
Great stuff. (No affiliation.) I need to dig into her other work. Apparently quite a bit of her other stuff is also available online for free.