@luana@wetdry.world It will fully support using other operating systems including users making their own builds of GrapheneOS. It's part of our hardware requirements. We'll likely be able to make hardened builds of firmware and drivers which can be released in an official way for easy builds without needing to extract anything from the GrapheneOS or Motorola OS factory images.
As long as they have basic shit like NFC or wireless charging. One of the main reasons I stopped buying them. 2nd was the tablet sized screens.
Motorola was kind of sluggish/selective about those, but they seem to pretty consistently have those features now. Always worth double checking.