It's really comical when you want to have same security guarantees as you get on apple devices you are a criminal. Search more: "apple devices automatically restart", "apple device full encryption", "apple lockdown mode".
edit: this was a response to another comment opps.
Of course, the same authorities angry at GrapheneOS are also angry at Apple. The main problem is that you can't call iPhone users criminals, you'd get laughed out of the room.
But installing a third-party OS? That's weird. Weird enough to exoticize and marginalize.