I know rpf (aka real people fiction) is quite controversial in fandom, so here's my opinion on it.
I've read quite a few fics tagged with rpf (it was mostly lestappen and gtop, which you might not think is a wide range both fandoms are pretty big so it's fine). And while i definetly see the appeal of shipping real people, especially in places like Hollywood or the k-pop industry.
I mostly treat it as a joke.
I'll read some fics tagged with rpf, i'll like some fan edits and i'll indulge in some gtop theories. But i don't actually ship these people so i see it as a joke. These are real people, with real lives and most of the time real families, so it's best not to dig deep and make these people uncomfortable.