Do you believe that ChatGPT is doing the the research? I'm all in favor of better access and tools to research but at least in the US all of the research is being defunded, we're actively kicking researchers out of the country, and a bunch of white billionaires are proposing this as an alternative, based on training data they won't share.
This is a product feature that invalidates WebMD and the like. It does not solve any health problems.