CalyxOS doesn't even have the 2025-06-05 patch level and their 3 core devs quit. The project founder, who is the key custodian, was pushed out and updates stopped. He is now involved in trying to create a for-profit company with Louis Rossmann. I'd assume it's as good as dead if there is nothing to replace now.
GrapheneOS is a security/privacy focused OS, we arent promoting it as a political campaigning chip against a big tech company. We support Pixels cause of the security properties it provides.
We're negotiating with a top 10 Android OEM to get their newer devices ready to potentially be supported by GrapheneOS, but we can't say much details yet.
Most devices make using other OSes difficult / impossible, don't provide security updates on time and don't even use a secure element to protect against physical attacks. We aren't taking a LineageOS approach to push mixed functionality versions on every device as possible. People will blame us when they use GrapheneOS on some unsafe end of life device and still get pwned.