An initial paper was submitted to Nature in 2020, but rejected.[10] Similarly-presented research on room-temperature superconductors by Ranga P. Dias had been published in Nature earlier that year, and received with skepticism—Dias's paper would subsequently be retracted in 2022 after its data was found to have been falsified.

Emphasis added. The paper that had falsified paper was by a different researcher and was about a completely different putative superconductor. Only Dias' paper appears to be based on falsified data. There's no indication that the LK-99 paper is based on falsified data. Unfortunately LK-99 is suffering guilt by association simply because both of these things are about room-temperature superconductors, but they share nothing in common with each other beyond that broad topic.