"could easily"
I just asked ChatGPT: when using a fry pan, does the smoke contain formaldehyde and benzene?
    > Cooking at very high temperatures (over 450°F or 232°C), especially with oils or fats, could theoretically contribute to benzene formation.
That is a mighty hot fry pan.  The hottest cooking that I know of in common practice is "wok hei"-style from China.  When you start cooking, the food rarely exceeds 230C.  When you are heating the pan, the oil may exceed 230C for a few seconds.  If you use a fry pan, but cook in Mediterranean-style, the temperatures are much lower."could easily"? Hardly.