They don’t need cameras. Your phone is constantly connecting to cell towers and broadcasting its unique identifier. Those towers keep a record of who has connected. So long as your in range of 3 or more towers they can triangulate your location.
I don’t daily drive Linux (though I use Tmux and Vim 8 hours a day if that counts for anything) so take this with a grain of salt. Would those companies jumping to Linux really be a problem? Steam is embracing Linux and it seems like it’s legitimized Linux gaming in a way that people never thought was possible. I hate Adobe, but how would Photoshop Linux edition prevent you from using open source alternatives?
That is a skill that more of us could use. Myself included