That 4chan thread is talking about the October 2019 report from https://www.ghsindex.org/ https://www.ghsindex.org/ sponsored in part by the Gates Foundation

That 4chan thread is talking about the October 2019 report from https://www.ghsindex.org/ https://www.ghsindex.org/ sponsored in part by the Gates Foundation and reported by the Washington Post and others, retweeted by Joe Biden. This was not secret insider information.