Not to rain on the parade, but doesn't GrapheneOS only works on Google Pixel devices? I mean, that's still in the Google jail on a physical level, even if they swap out the software.
GrapheneOS has full support for 10th generation Pixels. It was much harder to add initial support for them than past generation Pixels but it isn't harder to maintain now that they're supported.
There should be multiple 2027 Motorola flagships meeting all the requirements for GrapheneOS. They'll be providing official support for it and they're already working on porting GrapheneOS to their devices.
