Yep, I tested with my 21 Ford and removing the TCU (telematics control unit, that acronym should be general to most of the industry) disabled cell communication but didn't impact operation of the vehicle.

I did end up hooking it back up to re-enable remote start since I'm in a cold climate, but I couldn't help myself but test this. Something mobile like a car can't assume connectivity, although I have heard reports of people stranded when using rental services that rely on cell connection.

Forum confirmation here: https://bobistheoilguy.com/forums/threads/disabling-fordpass...