Does anyone have info on PFAS in products like fence preservers?

There is a movement to phase out PFAS (that lasts in the human body). I have just been preserving my wood in the garden with Ronseal and presume it is full of the stuff. I can't find detail on it.
PFAS waterproofing is used in make up, food packaging, water-proofing for clothing and shoe sprays, glues, laquers, Teflon, house building materials and all sorts, usually not labelled. It becomes part of the rain water cycle, so clouds and rain can be full of it.
Any thoughts on avoiding products, esp in preservers and paints? Thanks
(Links are given above)
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What exactly have 'we' been covering ourselves with @mac12 ?
I live in west central Scotland - not where that photo is...