The people who claim to be "actually qualified" are the same people who run (ran?) the show at the NIH that have been actively covering up their own opinion that the lab leak of the research they were funding is the most likely source of COVID-19.
What about actually fun conspiracy theories? Wouldn't any plot trying to reduce population with an artificial coronavirus push lab leak theories in order to depress virus research? If you prefer Big Pharma as the bad guys, wouldn't Western pharmaceutical cartels attempting to earn billions selling vaccines attempt to discredit China as a diversion?
You may or may not enjoy reading through a full and lively debate that was well refereed with clear rules in advance with all the known and verified facts from all sides to hand in advance.
He does not think this started in a lab.