The submitted title is incorrect. The actual article title is "Pressure-induced high-temperature superconductivity retained at ambient". The abstract doesn't make the claim of superconductivity at room temperature at 1 ATM.
Submitters: please don't rewrite titles like that. It's against the site guidelines:
"Please use the original title, unless it is misleading or linkbait; don't editorialize."
> We have also observed that some phases remain stable without pressure at up to 300 K and for at least 7 days.
not imply the 7days are at ambient pressure?
See page 5. The phase is stable but does not superconduct at that temperature.