- Edited
Installing GrapheneOS as a live OS to RAM would provide the ultimate level of forensics protection. This isn't for everyone, but having the option to have your phone seized without needing to duress and find yourself in legal or physical trouble for that would be the highest level of security. Something like fastboot boot --ram grapheneos.img during startup. Are there live images of GrapheneOS? If not how difficult would it be to create one as an individual or GrapheneOS themselves?
Think of it like Live Linux USB's but for phones. Graphene already knows how to work with pixels and their unlocked bootloaders for best shot compared to linux distributions who aren't as focused for live support for phones.