Meta just wants to sell ads. That's what makes them money. The tracking part, that costs them money.
The NSA doesn't make money, their budget is $74 billion a year. That's a pretty nice chunk of change.
And neither needs a Fire Phone, any phone will do. iPhone, Android, even a dumbphone can be tracked. The Austin package bomber was located in part by cell phone triangulation, which works with any device that connects to cell towers. https://www.foxnews.com/tech/h....
So if you don't want to be tracked, you'd better not use a cell phone of any kind, or a computer of any kind that connects to the internet.