I don't trust really Google anymore but I think GrapheneOS without Google services should take care of any risk.
If GrapheneOS was available for other devices I might switch but that is not the case. Maybe this Motorola deal will produce something but that's still a ways out if it ever happens.
That is why I'm considering the used Pixel 8. GrapheneOS will support the Pixel 8 through October 2030. Maybe by then this Motorola deal will bare fruit.