I’m not sure that G from FAANG underpays: I stayed in Zurich because I got much better pay than if I moved to US. Also the pension system in Switzerland is awesome. The big downside though was that the male-to-female ratio was beyond unhealthy, so it’s a much better deal for women and men who have a family already.
Back to my home city (Budapest), but in the winters I’m travelling around South and Central America. I invested enough money during my stay in Zurich that I don’t have to worry about it anymore too much.