GrapheneOS says Google is making life harder for rival operating systems and devices - Android Authority

GrapheneOS says Google and Apple are increasingly using device verification and attestation systems in ways that lock users into their own hardware and software, making it harder for alternative operating systems and devices to access apps and online services. The project argues these security measures can block installs, sign‑in, or functionality for custom ROMs and privacy‑focused builds that aren’t on device allowlists. That raises competition and user‑choice concerns because it can limit the practical viability of alternative OS projects even when they offer strong security or privacy features. This intersects with other platform actions, such as Play Store policy changes and app warnings, showing how service access and device behavior are being shaped at the platform level.