[yokaze]

It is being done in countries like Switzerland and Norway. Not exactly poor countries.

As I understand, in both cases, the tax resident has to declare their global (netto) wealth and have to pay a small percentage (close or less than 1%) of that wealth.

Don't you ever had tax obligations due to shares? Sell-to-cover is one solution. But I suspect at that scale you get enough dividends from these companies to cover.