Yeah, a lot of HVAC guys don’t install anything but the big chonky outdated single/dual stage domestic brands. I read this comment as he got one built in with the house, and unfortunately, since they tend not to be understood by buyers and therefore command any premium in the sale process, there’s not much of an incentive to install anything but the crappiest pump on the market. This happened to us, the last homeowners wanted to replace their old furnace right before selling, so they installed the lowest efficiency heat pump that’s legal to sell. It’s trash in cold weather. I DIY installed a cold weather rated mini split myself later, it’s incredible in cold weather, and sips power.
I went down a big rabbit hole when I installed it a couple years ago and made a little calculator to compare heat pumps based on the weather in your area and the pump temperature-efficiency curves: https://heatpushers.com
It needs some revisiting, though, I’m guessing half the links are broken by now.