Yes, this is already the case on Android.
Two years ago I canceled smart-id contract (https://www.smart-id.com/) and stopped using any "smart" devices. Because one day the smart-id app ceased to work on my rooted smartphone.
Soon my old 3G dumbphone will be useless as the mobile operator ends the service. People are pushed to newer phones^W surveillance devices and I have to hunt for real 2G phone soon.