I am as quick in dismissing anything that sounds like a conspiracy theory as anyone. But I also recognize that the perceived consensus is oftentimes just that, perceived.
This is also true for science. While we often claim that everybody tries to disprove everyone else to gain recognition, the reverse is more often true. Going againt the mainstream opinion is costly, it damages reputations and funding; after all it is others in the same field who get to decide what is good science, and what is bad.
Which brings me to this article, which argues that a lab origin of the COVID virus it is not as unlikely as generally believed. The author shows that the pieces that very much shaped the consensus are not very convincing, that virologists know this but have no strong incentives to make this opinion heard. That the lab-origin claim is associated with Trump does not help.
As a layman I have no strong opinion on this, of course. But dismissing any possible origin of the Coronavirus out of hand does not sound right to me. Needs more research!