Tons of folks thought lab-leak was very plausible and fairly probable but two recent papers have changed their mind.
1st looked at timing and spatial data of people w reported cases, determined the market (which is massive, city blocks) was the epicenter, even down to the quadrant of the market which happened to be where the produce and meat was located (wet mkt).
2nd one looked a genetic data, found tons of samples in cages at wet market, etc, determined that there were at least two early lineages of the viruses proving that it jumped at least twice from animals to humans AT the market.
Timing + location tied to the multiple strains means either it was zoonotic, meaning it leapt across animals and then humans at the market, OR lab leakers intentionally introduced the few different lineages into both animals and humans simultaneously at the market. The latter isn't probable, hard to fathom how that could be pulled off.
Plenty of other diseases have jumped in zoonotic fashion,it is simply coincidence that the market is in the same giant city as the lab which was studying, experimenting with viruses from bats, etc that would be similar to this particular virus.
Important to remember that sars v1 was a thing... A zoonotic thing.