I have no sympathy for them. They've charged extortionate exchange rates to travellers for decades, so now they get themselves extorted by hackers? Karmic justice.
If you like having a 40+ min commute instead of a few minutes of walking/biking for a few thousands of tax savings a year. Some people don't. Generally the richer you are the more you get to value your own time.
Not really. Out of all FAANGs there's just Google in Zurich with a significant presence. They pay well above almost all other swiss and european companies, but are not really the top paying employer in the Bay anymore.
Not being able to job hop among FAANGs is a big risk to your compensation here in the long term and will make you eventually lose out to Bay Area, even despite lower taxes.
At 200k+ pay from FAANG swiss income taxes are not that low. In Zurich they roughly are comparable to US federal taxes, like what you'd pay in Seattle with just a few niceties like no capital gains tax. It gets a little cheaper in Zug and Schwyz but not much.
Health care is absolutely not free, in fact it's probably second most expensive country in the world for healthcare after the US. A doctor visit is going to cost you 100-200 franks at least. Insurance system works much better than in the US, but prices are (almost) as crazy.