If it is scratched or heated above what it says on the label, then yes it is absolutely toxic.
I mean, I'm not too awful worried about it compared to my adventures in 3D printing (with its crusty PTFE Bowden tubes).
But I very deliberately have just exactly one Teflon-coated pan in my house, and it only gets used for exactly one purpose: Making scrambled eggs with a rubber spatula. (I like my eggs scrambled sometimes, and I'm not pro-enough to make it work with cast iron or stainless cookware.)
This one was very cheap, at Aldi; if it dies, it dies. I try to avoid spending too much money on cookware because whenever I live with other people, the tendency is for them to find some way to absolutely destroy it.
And by that, I mean like: I don't even know what temperature it is that copper gets drippy-melty at, but they managed to exceed it.
And if the scratch is deep enough, you could also be exposing the underlying fluoropolymer coating which contains chemical binding glues which are definitely not foodsafe
Also modern replacements like GenX and PFOA are dangerous because they are not inert