I wouldn't mind using a polished phone from Mozilla if it gave me full control over it (ie. not limit all software to non-overridable restrictions) and was well

I wouldn't mind using a polished phone from Mozilla if it gave me full control over it (ie. not limit all software to non-overridable restrictions) and was well supported (ie. not abandoned or put on maintenance after 2 years) and didn't assume I want to send personal data to a server by default.