[jrexilius]

A sort of related question, is the user able to actually power-off the baseband carrier chip and still keep the phone powered on? I seem to recall there being some 911 regulations around that topic. But it might be a way to enable the user to at least disable that tracking vector, while still using the phone offline or via wifi?

[simon666]

Additionally to what others have said LineageOS (Android open source OS) allows you to selectively turn on/off carrier modem and radio in quick settings just like you do for wifi, bluetooth, gps etc. You can use airplane mode which will by default turn off the carrier radio and wifi, of your can manually do this selectively.

[inigyou]

This feature is called Flight Mode or Airplane Mode on most phones. You'll know if your phone implemented it this way because your battery life will go wayyyy up while in the mode.

[ThePowerOfFuet]

That's what Airplane Mode is for.