We have covered the debate about the lab origin versus the market bat soup position of SARS-CoV-2, in numerous articles at this blog. Earlier, scientists proclaimed the market bat soup view, mainly because Trump was championing the Wuhan CCP lab hypothesis. Recently it has been revealed that some of the original team had undeclared conflicts of interest. As well, other media items have stated that many scientists thought that the lab hypothesis was true, but still publicly advocated for the market bat soup view. Molecular biological evidence accumulated against the market bat soup view, including the extreme improbability that the furin site which made the virus so contagious, arose by chance. It had all the markings of being produced by gain-of -function research, which was done with coronaviruses at the Wuhan lab, with US-grant funding. There are now mainstream books about this.
But in science there are few absolutes (excluding absolute zero temperature), at least in epidemiology. A recently released paper has claimed though that the Huanan Seafood Market in Wuhan was the epicentre of the outbreak, not the amplifier: