What exactly is the relationship between the scientific and epistemological versions of these theories?
They are somewhat synonymous to me as well, but I used scientific realism to distinguish other epistemological vectors to realism/anti-realism. I switched to science there since you mentioned the use of empirical proofs to acquire knowledge.
As a tangent, other forms of knowledge acquisition exist; one can acquire mathematical knowledge, which isn’t subjected to the same empirical burden when compared to, for example, facts in biology or physics. Some then go on to espouse the realism of mathematical entities (structural realism, among others), but these would be obtained a priori, so you’re looking for the camp who opposes this. I think they’re typically just different strains of empiricism.
Maybe that’s actually epistemological, but it still concerns metaphysics
You are right that there is a 2x2 grid you can make to relate the two. On one hand, you have anti-realism versus realism, and on the other rationalism versus empiricism.
Is “epistemology of metaphysics” a thing?
There is definitely an epistemology of metaphysics. I think that covers a large part of analytical philosophy which spans all the way back to Descartes.
Are you on the right community? I see articles being shared from both Big Media as well as independent leftist journalism. Nothing wrong with cherry picking articles from the horse’s mouth, and if anything, I thank Yogthos and others for sharing what they think we might be interested in. It’s not like they wrote it themselves.