If you are serious about OpSec and want a Graphene phone be sure to source it from somewhere like Ebay/local seller using Tails and payment/address not associated with you. Then wipe and install Graphene yourself on a machine airgapped.

Then get prepaid simcard not using anything associated with you. Along with making sure to change the MAC address phone uses. Will make more detailed post if people wish. 🤙💜🫂