https://www.youtube.com/watch?v=bpQFCcSI0pU
https://www.youtube.com/watch?v=a-GVcfP1zrg
And here's a pretty thorough analysis of the flaws with this theory: https://www.youtube.com/watch?v=ab-r0capbzk
Just watching the 'thorough' analysis video, he talks about some person who posted a paper about the source, and in the screenshot it shows Feb 2020. And says the source of the paper was from laowhy86's video, which is published April 2020.
I stopped watching there because it already makes no sense.
At timestamp 6:36 of his video [1], laowhy86 analyzes a copy of the draft "The possible origins of 2019-nCoV coronavirus" to conclude that the virus must have come from the lab. This preprint has been shown to be false by future scholarship (see the citations of the draft at [2] for some examples).
Potholer then analyzes the veracity of the claims within that preprint in his video [3], starting with an excerpt of [1] starting at 2:02.
So the timeline should be:
Feb. 2020 - Preprint published
->
Apr. 2020 - laowhy's video
->
May 2020 - potholer's rebuttal
[1] https://www.youtube.com/watch?v=bpQFCcSI0pU
[2] https://scholar.google.com/scholar?cites=1699435143784344899...