The literature on PTFEs illustrates that it is, at best, uncertain whether there are health harms relating to contact and ingestion. Most of the studies struggle with confounds, controls, and sample sizes because almost literally everyone has been exposed to PTFEs. Toxicity researchers would not definitively agree that it is “completely harmless”.
The other commenter is right, also, that PFOA and GenX (the chemical, not the generation) are more evidently harmful and both involved in, and released from, the creation of PTFE.
Just throwing this out here in case someone is like “wait, IS Teflon fine???”
I guess this isn’t NO context but:
Innkeeper married to a nixie: “The Fey never do anything without a price…”
“… How much did you pay for your wife?”