TL;DR
- Efforts like Graphene OS face increasing pressure from apps that refuse to run on non-standard Android.
- The custom ROM project characterizes Google’s approach to device attestation as incomplete and flawed.
- Graphene OS is prepared to take legal action if Google won’t let it pass Play Integrity checks.
This is why raspberry pi can’t use a single smartphone recycled screen despite having a DSI port and a billion oled touchscreens going to landfill.
Also, still is impossible to make Verizon unlock bootloaders