It’s got a metal key inside the housing that unlocks the doors and the fob sensor is actually inside the armrest so if the battery is dead you place the fob inside a pocket in the armrest and it authenticates your fob with NFC and you drive away. Closest I’ve seen in a modern car anywhere.
My Chevy Bolt is all Electric and has a real physical key that has to be in the cabin to drive. No app bullshit. The Bolt is currently out of production but any of the Chevy EV should be the same. Chevy never went full app-dumb and many of the modern convenience features are gates behind OnStar. I have a regular car remote for lock, unlock, and prestart.
Wherever their donors told them to do.