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Bill Gates to give away 99% of his wealth in the next 20 years
(www.gatesnotes.com)
This is a most excellent place for technology news and articles.
Not saying you are wrong or anything. I just remembered seeing Bill Gates' name being brought up as a supporter of raising the estate tax for the richest rich people. Its not the article I remembered but didn't feel like spending time sorting thru the search results for the most reliable source but here is a Forbes article that mentions Gates as supporting raising the estate tax:
https://www.forbes.com/sites/cartercoudriet/2019/10/15/billionaires-more-taxes-gates-buffett-bloomberg/
There is prolly more/better articles out there but all the top search results today are referencing Trump's estate tax hike that was announced in the past day or so.