It sounds like there are more doctors moving from the US to Canada, but not a huge number. The numbers are up from last year, but not by a lot.
It would be interesting to know if Canadian healthcare workers are still moving to the US in a big way, but the article doesn’t explore that.
How do people with money do it? I don’t think there’s a “golden visa”
Wealth is a consideration for most immigration. It’s not so much “golden” but that it can improve your application. Canada also considers your age and you’re rated lower for being over 35.