What really raises the most suspicion of the lab leak theory in my mind was how the Chinese government acted towards the rest of the scientific community...well before it was a theory at all. Not allowing foreign scientists in, destroying evidence, arresting journalists, etc. That just screams cover-up, even if there was none (in terms of a lab leak.) Then Western scientists that rely on grants with Chinese ties, etc…
That is nothing special for the Chinese government, they would have acted that way regardless. They are extremely adept at creating Streisand effects.