I'm not skilled enough in the biomedical background to evaluate the various genetics-based articles written for or against natural-origin and lab-origin hypotheses. As a layman, however, I find the degree to which the Chinese government has stomped all over foreign-led investigations into the origin of SARS-Cov-2 to be highly, highly suspicious.
The best writeup I've seen is actually this twitter thread from the WNYC science reporter, Nsikan Akpan (himself a phd in biology). The gist being that while lab leak is still possible, it's very unlikely and it's also likely we'll never find a smoking gun for any hypothesis. https://twitter.com/MoNscience/status/1396240581651742724
https://www.newyorker.com/news/annals-of-inquiry/the-sudden-...
The two scientists seemed to think that although a lab leak origin is possible the natural origin story is more likely.