Comment by therein
It being by Google, I have a feeling Google and LEA will be able to use tools on your phone too. They could very conveniently use this for "we didn't analyze your data using AI, we instructed your local AI to analyze your data" so it isn't technically a violation of your rights.
Yup. Fortunately Graphene OS will likely soon run just as well as on their previous hardware. You can re-googlify it as much as you're comfortable with.