That's old heat pumps. Mitsubishi introduced their "Hyper-Heating Inverter" heat pumps designed to work well in cold weather in 2007, with Fujitsu and Daikin adopting similar technology by 2012, and others following within a few years.

These remain 200% efficient down to -4℉ and 150% efficient down to -22℉. Their capacity starts dropping at 23℉ going down to 76% capacity at -13℉.

There's only a few towns in the continental US that cold enough for long enough that it can't be heated well by one of these. You just need an installer that will size it properly for the climate in your area.