Yeah, magnesium citrate is used medically as a laxative. Because it is poorly absorbed, it draws water into the stool osmotically, making it softer. (But that also draws water out of the body and can be dehydrating.)
The Zanagrams game, which AFACK is from the same developer (?), actually does this - it counts up like a stopwatch, then compares your time to the global average at the end.
What makes PFAS so difficult to deal with is the fact that they are particularly inert. Teflon works because it doesn't react with almost anything. I've seen some studies about using UV light to kill off PFAS, but that's not going to be desirable when you want those red blood cells to also survive.
Back in the 80's the British air force would fly ridiculously low over the rural village I grew up in, certainly lower than they were meant to be allowed to - everyone hated it. You'd be minding your own business and then just about shit yourself out of nowhere!
I just installed Bazzite-DX, and have been really surprised with how easy it was to install, and how well everything "just works". It even tells me when my wireless keyboard batteries are running out, something Windows couldn't do without running proprietary Logitech software.