Where are all the bats infected with this virus? It it came from a bat, it would have had to be circulating in the bat population a LOT to mutate enough to jump to humans, right?
So...why not go find a bad, identify the parent virus, and close this whole thing out?
So a very likely explanation is some low level employees grabbed some bats, got their suits and vehicles contaminated didn't clean things properly, drove down to the Wuhan laboratory, and rested in town spreading virus contaminated dust or if they were already sick, their virus filled respiration about.
No lab leak needed, just the regular practices when "Wuhan Institute of Virology in China sampled thousands of horseshoe bats in locations across the country", and those doing so were being sloppy, as they have been known to be repeatably.
[0] Bat cave solves mystery of deadly SARS virus — and suggests new outbreak could occur - December 2017 https://www.nature.com/articles/d41586-017-07766-9
The leader of the Wuhan team went there with a team to collect samples and animals. In the early days of Covid, those samples were re-examined and it turned out that the genome of the Covid strain was very similar to the Covid 19 virus. So the conclusion was taken that those bats must have been the origin where Corona somehow started. Somehow nobody at that time thought much about the fact that those samples were kept in Wuhan, exactly where the outbreak started.