Native Chicagoan here. Not totally a snob, but getting there. I didn't usually encounter really crispy crust growing up, but I'm not saying it's wrong. He does a lot of things here I've never tried, but now I'm going to. I had an Ooni, and after 5 or 6 meh attempts, I sold it. I also exited the r/ooni subreddit. I'm also out of love with the Neapolitan style baked at 700F+. Come at me. I think a pizza steel preheated…
For me, the pizza steel is also plenty good compared to the portable gas ovens. Some other tricks I use are adding diastatic malt powder to the dough, and par-baking the crust before adding the toppings, to let the middle get crisp.