What’s more, my oven sucks up to 3kW and has a 72l volume of air to heat up, from what I see most air fryers are between 1 and 2 kW and hold 4-7l of volume… The scales are pretty different, insulation or not (air fryers have less surface area for heat to escape from, also).

I don’t have one, but I use my bread machine a lot 'cause it uses a fraction of the power of my oven, aside from kneading automatically.