@nprofile1q... @nprofile1q... Setting it to Off disables USB including charging in the regular OS boot mode.

It will still charge in the special OS boot modes: charging, recovery, fastbootd and rescue. Charging mode is what boots when you plug the device into a charger while it's turned off and shows the battery percentage on the screen.

It can also still charge while powered off and in the firmware boot modes: fastboot mode and boot ROM recovery mode.

It can't brick the device.