Eirikr70 If you are accused of a crime punishable of at least 5 years of jail
In my view the OP did not ask about legality but about technical possibility of remote activation on GOS
Eirikr70 GrapheneOS might help, but is not almighty against a state level actor.
Well, by the same logic, governments are not almighty to turn remote mic or camera on IF there are no techicals means for it in the OS.
I think OP's question is valid - is remote control of mic and camera part of ASOP and backed into all devices and if the answer is yes, can GOS disable that?