I think there’s some nuance here. The virus could have a perfectly natural origin in bats, but not be able to infect humans in its original form. There are many ways the virus could have come to infect humans, such as by manipulating it directly, via gain of function research, or even just by a random mutation that managed to infect a lab worker (seems unlikely since it’s alleged there may have needed to be an intermediate species). Whether you could consider the virus “lab created” or “man-made” at that point is maybe a matter of debate. Even the Guardian article on Facebook’s policy changes seemed to conflate these scenarios, so I’m not entirely sure what the changes were.

But they’re all a far cry from the more extreme narrative of “this was deliberately engineered to infect humans and/or as a bioweapon”, which is not what is being suggested here (nor, it seems, was that ever what Tom Cotton suggested).