The Gore-Tex membrane itself is apparently(?) PFAS-free since some years, however Gore-Tex materials usually have a second waterproofing treatment (a surface coating called DWR, durable water repellent) which, drumroll, contains PFAS. Cheeky buggers, convincing people they had solved the problem years ago. ;)

Apparently they have some improvement in the pipeline that will bring about really PFAS-free product in the next few years or so. https://saferchemicals.org/2021/09/30/gore-tex-manufacturer-...