Once in a finished coating, Teflon itself is essentially inert unless you heat it up several hundred degrees
Thank goodness it isn’t used in cookware! 😬
Having kept birds in the past, I don’t believe it’s truly safe to cook with. People using it as directed have had their birds drop dead from it because their lungs are so much more sensitive. If it’s enough to affect them it’s very possible it’s just subacute in humans in the short term but causes health problems long term.
Also, it’s plastic. You can’t convince me it’s great to cook on top of that. Plus it doesn’t last the way stainless steel or cast iron does, you’re basically buying it to throw away in a couple of years.