RSU立刻賣出隻交INCOME TAX，但在手裏後漲了會有captial gain， 要另外交稅，RSU的交稅比較複雜

https://www.nasdaq.com/articles/when-should-i-sell-my-rsus-restricted-stock-units#:~:text=Should%20I%20sell%20my%20vested,to%20no%20capital%20gains%20ramifications.