For example (in Australia), my mate recently spent $40k, drawn out of his mortgage on solar panels, battery, double glaze windows, heat pump heating and cooling, gas stove to induction, gas hot water to heat pump and is currently investigating drawing more to upgrade roof insulation.
Housing prices have to decrease first if you want people to be able make these decisions. That means we need a deflationary economy through increased production, so more people can be able to afford the enhanced productivity.
That said, we have very nice triple-pane German windows in the house we’re currently building, and both the thermal performance and the finish quality are _wildly_ better than American window products. It’s just a whole different category of thing.