Funnily enough, most of our heating is done using baseboard heaters, or resistance heating. Newer constructions have heat pump/air conditioning combos but I don't know exactly how widespread they are, my parents have one and it's definitely more efficient than the baseboard heaters, but not by a huge margin.

I don't know if you know his channel, but Technology Connections did a couple of videos on heat pumps that were pretty eye opening, I imagine as much for Americans who have been hit hard by gas and oil lobbying, as for me as a Canadian who hasn't ever really seen anything other than electric heating.