If I see the PG criteria :
- CalyxOS is open source
- CalyxOS supports relocking on all its supported devices.
- CalyxOS published their first Android 14 build on 14th October, 10 days after A14 release and released A14 generally to all supported Pixels on 26th October, which is well within a month.
- CalyxOS got A14 QPR3 on June 13th in their security express channel, and rolled it out to stable on June 19th. It was released on June 11th, so well within the 14 days timespan.
- CalyxOS got the most recent security patch (as of now, July 2024) on 3rd of July, and rolled out to Stable on the 5th. This patch was released on the 1st of July. I will be honest and say this barely made it, but as noted above, they are very timely with updates.
- CalyxOS doesn’t promote or support root.
- If we are talking strictly Play Services, then Calyx meets this criteria. It uses microG instead ofc, and it is opt in. The user has a choice to disable it on first setup.
- No Play Services, so no system modification required.
So based plainly on the criteria, I have no reason to believe Calyx shouldn’t be recommended. At least for criteria 2, it actually beats DivestOS since DivestOS does have a handful of devices without bootloader relocking (example - https://divestos.org/pages/devices#device-avicii).