- Edited
First of all, I apologize if this is in the wrong place. Google fi is a phone service provided by google it uses tmobile and uscellular towers in the USA. I was unable to find anything about the compatibility in the forums. Having recently started using grapheneos I can say that everything works as intended. The only real issue that chafes a little is that I have to install the fi app to activate the esim. Google messages works with no fiddling including RCS chat. Just have to allow google play services messages permission. My first thought was to have it run in another user profile but it has to be on the main profile to work. Other than that no complaints.