LK99 Real or Internet Hoax?

For Xcomer ZzZ

“If you’re not following LK-99, you’re missing out on the most fun thing happening on the internet right now. Feels like the old internet.

TL;DR:

Since 1999, a tiny group of Korean scientists, working in obscurity and in their off-time, pursue the dying wishes of their materials professor who has his own theory about room temperature and pressure superconductors, a century-defining material, the holy grail of materials science and an instant Nobel prize.
A week ago, one of them went rogue and published a paper describing how to produce their substance, LK-99, which may or not be this holy grail material. It requires no exotic materials or equipment to reproduce, but the paper omits a lot of detail about the specifics of the synthesis.
They accompany it with pictures and a video. There are mistakes in the paper, but the authors say they are trivial, will be fixed, and all of them stand by their claims, even as they feud with each other.