Ok watched it and it was interesting. Ummm looked up the drugs recommended and they were both in the news back in March as a potential cure/treatment and being tested in both Germany and Japan - what has happened since? So I'm a bit dubious about the "rich guy" offering to repay any donations to his research as it's the "only one" ...
https://www.thejakartapost.com/news/2020/05/13/a-tale-of-two-japanese-drugs-in-tests-to-fight-covid-19.html
https://www.pharmaceutical-technology.com/news/german-researchers-covid-19-drug/
What this all means I don't know either.