Starbright boat polish contains and advertises that it has PTEF. Think about that , a product designed to be rubbed all over l boats until it "wears off" in waterways. I used to use it ( it is a good polish) until I realized how messed up that is.

A lot of good lubricants and dry lubricants and anti-sieze bolt coatings have PFAs. Most waterproof fabrics like tents, goretex jackets and boots, waterproofing sprays, etc also contain them. Atleast waxed canvas and wool is making a big comeback in the outdoors communities.

Non stick cookware. Water repellent and stain resistant items and coatings. Stuff like that.

Largely by avoiding waterproof or water resistant skincare products such as sunscreen and makeup. Also avoid using nonstick cookware.

I recently got a reverse osmosis water filter to remove it from my water. Since I rent I got a countertop filter but if you own your place you can get a filter installed for all your water.