It should be noted that attempts may have failed due to poor definitions in the paper which make it more difficult to replicate on the first try. It means more testing will need to be done to truly know if it can be replicated.

But also, just today someone claimed to have replicated it at a Chinese university. Now, I’m not a physicist so I have no idea if the video is legit or not but it has a lot of professionals in the field talking so I think it carries some weight. It isn’t something to get excited about yet, but also don’t brush it off as a hoax either:

https://www.tomshardware.com/news/superconductor-breakthrough-replicated-twice