“Altimeter setting” or just “Altimeter” is universally used in the US and Canada. Most pilots who are too lazy to read the AIM here have never heard the term QNH or any other of the Q codes
Adjusted at no cost
Russia, China and some of the -stans still use QFE.
China uses QNH (in Hectopascals).
I heard one Captain had converted a power drill to set the altimeter going into Mexico City.
That's funny
