It keeps being debunked and it keeps coming back, but the new coronavirus wasn't created in a lab.
I spoke with the senior author of a recent paper on this: "Nature still can do a better job at designing a virus than any person could," Robert Garry said. https://www.cbc.ca/news/technology/coronavirus-wasnt-created-in-lab-no-signs-genetic-engineering-1.5508735

I learned some things, like if you try to engineer a virus, it will leave signs.

Lastly I asked him, because conspiracy theorists will likely yell at me on Twitter about it, how do we know that the information China provided on the genome of SARS-CoV-2 is right? Garry told me it has since been independently sequenced so we know it's correct