Looks like GrapheneOS was promised firmware access:
> Aside from that, we'll have a lot more access to the code for firmware, etc. and ability to do hardening below the OS layer through the partnership with Motorola and their partnership with Qualcomm.
> Aside from that, we'll have a lot more access to the code for firmware, etc. and ability to do hardening below the OS layer through the partnership with Motorola and their partnership with Qualcomm.
https://hackertimes.com/item?id=47217028