There are very transparent and detailed hardware requirements there.
As of today, only the pixel satisfies these requirements.
GOS is working with another OEM to meet GOS requirements on a non-pixel device.
Discussion
It's looking light on the details to me. "It would be a lot of work to support other devices" is basically the entirety of it, I'm seeing no detailed hardware requirements for a phone to be a candidate except "made by google."
Understand, I'm not attacking anyone here. I will be buying a pixel and running grapheneos on it very soon. But I still wonder, when you say "only pixel satisfied these requirements" why, particularly, is that the case?
The secure element requirement eliminated 98% of all androjd devices.
Samsung is the only major OEM that sports some version of a SE.
GOS could be working either with Samsung, or some other OEM to meet all other requirements beyond the inclusion of a SE.
the security chip and its integration with the os