GrapheneOS is basically the Android equivalent of iOS Lockdown mode. Considering how the threat landscape has changed, it would be nice if Google offered this itself. Or became a long-term sponsor of GrapheneOS, seeing how great a job they've been doing.
Not really.
iOS in lockdown mode has multiple features disabled (or crippled, depending on how you look at it), while GrapheneOS is just..... secure by design with secure defaults.
https://support.apple.com/en-us/105120
In iPhone also you cannot just turn on/off/adjust these protections one by one, it's all or nothing.
> OS in lockdown mode has multiple features disabled [...] while GrapheneOS is just...
...disabling features. Android Auto, Google Pay, enhanced GPS, SafetyNet, push notifications, support for any apps requiring device integrity, etc.
They aren't redesigning and re-implementing these features securely, they are reducing attack surface just like lockdown mode.