Not trying to start a fight here but not sure what kind of hill yall are trying to die on here.

I am from the west, have lived all over the US and no there is not great data on the matter but I have historically had an interest on air quality and I cook a lot. There is some nuance to the data. 10% reported not having any hood. 26% of gas households were not vented. 36% of electric were not vented. You can start going down that path and also start seeing that most vented hoods are either inadequate or don’t properly cover the cooking area.

So I am not sure what you are trying to argue about? There is a non-trivial amount of homes in the US without proper ventilation. You can pull up Zillow almost anywhere in the country and easily find center island cooktops without hoods or down drafts. Or even more common a microwave recirculating that air.

https://pmc.ncbi.nlm.nih.gov/articles/PMC10234804/?utm_sourc...

I think most people don't know that the fan in their microwave is not vented to the outside and that that is important. Maybe its a height thing- are you tall? I don't think short people realize how gross the top 1-2 feet of a kitchen are.