@Zardoz @BowsacNoodle @Shadowman311 99.999% sure SARS-CoV-2 came from a lab leak of a gain of function experiment. Almost certainly done by "The Batwoman" in a Wuhan Institute of Virology (WIV) BSL-2 lab.
That is, a normal lab bench with minor precautions, not in the two levels up, highest danger and most booked for use BSL-4 lab the WIV has.
That is, she was not in an uncomfortable, much less productive moon suit you see in a photo or two. BSL-3 is the absolute minimum that's sane for gain of function research, obviously BSL-4 is not too much, but really BSL-"we will kill you if you try this shit" is what's required.
From my knowledge of the biology angle, Alina Chan did some of the first good work on this while locked out of her lab by looking at full genomes.
Unlike SARS-CoV(-1) early on and which died out it is was remarkably well adapted to humans, did not mutate a lot to get better as of when she did that work, start with "SARS-CoV-2 is well adapted for humans. What does this mean for re-emergence?" in May 2020.
She then wrote two papers every couple of months which gets us to the first sample of the first significant variant, Alpha. That is, the first one seriously more adapted to humans, much more transmissible, albeit also with a higher death rate.
She later wrote a book, that should be a good intro. See also reports on the DRASTIC team, like "The Lab-Leak Theory: Investigating Fauci's COVID 'Can Of Worms'" by Katherine Eban, published in of all places Vanityfair.com in June 2021
They do good, highly technical for the MSM work upon occasion, see also for example the one on Steve Ballmer's catastrophic HR policies while he lead Microsoft.