Recent? Air fryers have been a thing off and on since the late ‘70s when they used to sell those funny shaped stovetop versions. So that’s 40+ years of air fryer trends.
We got one a few years ago and, while I was highly skeptical about their usefulness, found that it does a fast job of cooking things evenly. I can toss a pork loin in it and it’ll be done in 10 minutes while I’m maybe cutting up some veg for steaming.