The former? Furthest from it. But Philosophy of Science wasn't my academic focus...it's something I jumped into post-doc, and what I usually do on the sadly rare occasions when I actually work in my field. lol Prior to that exploration, some of my favorite philosophers were people who worked in that field (Popper, of course, plus Hempel, Kuhn, and (expanding the envelope a bit), Russell. A modern figure I admire (and know...) is Ursula Klein.

Thanks for the link!