I give up… Privacy is a fool’s game and it’s a losing one at that. We are slowly entering a world where more and more requirements are made on people to own a regular non-hipster cell phone. There are places you can’t even buy parking or look at a restaurant menu without having a proper cell phone.
Maybe the answer is not to flash some obscure on life support operating system on your Google pixel but rather… maybe the answer is to work within the system and simply adjust privacy controls as allotted?
I use a cheap VoIP and have a number specifically to give out to businesses. It offers way more control over call handling than a typical phone service, and I can change it whenever I want without having to give family & friends a new number.