I read through both of the links posted.

I couldn’t find mention of PFAS or ‘forever chemicals’ anywhere on the first link(it may just be a little out of date concerning the last few years of development.

The second link didn’t show any mention of a beer brewing link, but was specifically addressing ‘forever chemicals’ that are meaningfully on topic.

Unfortunately they also included this caveat:

“Although some of the filters did not achieve 100 percent reduction in PFAS measured in the water samples, they did eliminate 100 percent of PFOA and PFOS, two of the most notorious forever chemicals.”