So TL;DR,

1. Any substance that has most atoms covered by Fluoride are 'PFAS'. 2. C8 is strictly speaking PFOA (by-definition). 3. C6, and all other acids that has similar chemical properties to C8, can all be generically classified as PFOA-like materials. But for ease of communication people also call them PFOAs or just short for PFOA.

4. PFOAs are crucial for manufacturing Teflon. 5. The problem is manufacturers just dump waste water from PFAS production plants (containing PFOA) without post-processing into natural water bodies and let these toxic substances participate in the food chain and eventually land in our own bodies.

So the problem isn't PFAS or Teflon. It's the dumping of intermediary chemicals during manufacturing? This is the part that just comes off as fear mongering

How is the PFOA ending up in food? Is it from contaminated groundwater near the plant? Isn't the solution to not consumer agricultural products from that limited area?

And.. how is it ending up in polar bears?

The video just seems sensationalist. Somme chemical use in a step to make teflon is pretty toxic.. big surprise. But then it's ending up everywhere... somehow? And it's never really explained. But lots of hangwringing