Fairphone is far from meeting the update and security requirements for GrapheneOS. It isn't a viable platform for a hardened OS to use and isn't likely to ever become one due to security being very far from a priority for them.
GrapheneOS has a partnership with one of the largest Android OEMs. They're going to be announcing it in March 2026. Devices meeting all of the update and security requirements from them with official GrapheneOS support are planned for 2027. We don't expect future Pixels to prevent installing GrapheneOS but we'll be fine if they do. We'd still like to keep supporting new Pixels but they'll become a secondary option in the future since there will be devices with official support.
That OEM has yet to be named. It would be nice to see it happen, but it's yet to materialize.
> It isn't a viable platform for a hardened OS
Breaking from google/Apple doesn't in itself require a hardened OS, as we see in LineageOS.