Defining LK-99 as “the thing you get from following the steps in this paper” and not “the allegedly superconducting material these guys have a sample of” is silly.
Why? I've always understood it to be the thing the paper describes.
You say potato... The paper is fucking vague on all counts, from synthesis to result. "LK-99" at this point is understood to be most likely a mixture of compounds. It is not fully defined, it is not one "thing," it's broad proposal that encompasses a family of materials.