No, you can't test for PFAS with consumer kit, it's dangerous at 70 parts-per-trillion levels and is tricky to handle without contamination. The test itself is expensive, too. I'm in the part of Rockford, Michigan contaminated by Wolverine/Hush Puppies/Caterpillar shoe leather tannery scraps, and they've paid Rose & Westra GZA to send techs to my house every 6 months. A friend just outside the supposedly affected area paid $300 to have a test performed, which came back with <5ppt (to my house's 35-45ppt).

And that's just one possible issue. You can't feasibly test for every possible exotic contaminant.

In my case, however, a pair of 48"x10" granular activated carbon filters (with auxiliary sediment filters, water softener, and UV light) have proven completely effective at removing PFAS from my water.