Bingo. Literally abandonded in Lithuania, air to air is so much cheaper. Some builders even ditch hp altogheter - basic electric underfloor heating + solar panels is so much cheaper.

I'm in New Zealand and my bedroom heater is $20 electric + $20 smart plug + $10 temperature sensor. Winter bill is ~$100 NZD. It would take ~20 years for heat pump to recover install cost alone.