I'm not a culinary expert by any means but I own a tefal wok with an induction hob and it works fine. A professional may have other opinions though. Hope it helps!

I thought it was for all the pans !!!

Quality of the non-stick varies massively depending on the Tefal range in my experience.

Metallic brillo pad on a non stick pan.......

You seem to be the only one to be aware of the link...

Did you leave it soaking?

I have bought this same frying pan when it was sold at £10.00 several months ago. The non-stick properties are still as good as the first use. One should never wash a non-stick pan with detergent, just wash with warm water using a dish cloth. It is okay to wash the edges and the bottom of the pan with scouring pads and whatever turns you on to remove any burnt debris. Dry the non-stick surface with paper towels as the slightly greasy surface may stain your posh tea towels. Do not place any pots and pans onto the non-stick surface in storage. Your non-stick pan should last you several years. One last bit, only use soft silicon utensils on the non-stick surface.

sometimes putting it to boil with a little water covering the burnt area will help loosen the burnt remains

Tefal say their coatings do not contain PFOA.
Dupont stopped using PFOA in the manufacture of Teflon in 2013.

If you can find an article about flash-frying releasing PFOA I'd be interested to read it. In the meantime I'd be more concerned about the carcinogens produced by frying food at high temperatures than the Teflon.

It includes the sub-heading "No such thing as an "acceptable" toxic level" which is nonsense.
The LD50 (the level which is lethal for an average person) for water is about 6000ml.
Everything is a poison in the right dose - including vitamins (some of which cause cancer).
The dose makes the poison.