Wow. Seems reasonable what they have done to get the product released under control. It is still Samsung who makes the Tensor G4, but the next chip they are trying to move to TSMC for even better performance.
WRT to GrapheneOS, most people who run it have much better battery and system performance.
AND, the software tech is the correct direction.
If we get the volume up, we can make our own open hardware Graphene phone, believe it.