It's bad. It gets easily absorbed by the skin and fucks with your hormone system. It's in all kinds of stuff- non stick pans, can linings, receipts you get at the supermarket, consumer electronics, earbuds (bad to have stuck straight into your brain in the fine membranes and capillaries of the ear canal), LOTS of clothes (basically all plastic derivatives they mix in).

With clothes or shoes and so on, if you go to an outlet and touch a PFAS coated fabric, you'll get this thin sickly little film of oil on your fingers. That gets absorbed straight through the skin, and also now it gets on everything you touch, your face, the food you eat...