Motorola is porting GOS to the device. They can just decide not to bother anymore. There’s no evidence to speak of, the partnership is 9 months old.
GrapheneOS literally puts Motorola on the map for me.
Motorola Mobility was sold to Google in 2012 for ~$12bn, and then in 2014 to Lenovo for ~$3bn.
https://en.wikipedia.org/wiki/Motorola#Split_of_Motorola
No wonder if I see the "crap" my collegues have to endure with their Samsung phones in comparison to my rather quiet GrapheneOS phone. It has security and cost/time consequences. They could configure their phones better but don't care (due to insecurity what could break & complexity).