I thought those pans that are marketed as "granite" with a speckled pattern where just PTFE coated aluminium, is this something different?

I think “granite pans” (which aren’t) are basically enamel, like a Le Creuset

I’m assuming this is one of those enamel/ceramic non-stick pans. I’ve used a number of these over the years. They’re great for “non-stick that isn’t teflon” (I have a bird, so that is useful to me), but they do degrade very fast if you’re not extremely careful, and even if you are careful they still usually only last a short while before becoming significantly less non-stick. I’d recommend saving them for eggs and other very sticky foods, and using cast iron or stainless or carbon steel for everything else.

I’ve never heard of an actual granite pan. You surely mean a metal pan coated with a combination of silicone-ish things and silica, and maybe the silica is derived from granite.

Sadly, it seems that some of these things still contain potentially nasty highly fluorinated compounds. Here’s a patent for such a thing:

https://patentimages.storage.googleapis.com/6d/25/ca/9ff2bbd...

Hmm, the “FAS” additive in the outermost layer has a perfluorinated C6 chain. Whoops. I wonder whether this is better or worse than PTFE. At least intact PTFE ought to be harmless. PFHxA is not so wonderful:

https://en.m.wikipedia.org/wiki/Perfluorohexanoic_acid