The experience my friends have in the EU seems to be pretty good over all with healthcare. The US healthcare system give fantastic results at a phenomenal and often strange price. It's a trade-off I'm sure.
I agree that having savings helps. And I have quite a bit of savings. But I still wouldn't feel comfortable being laid off .
Over all I'm here in the US and I love it. But I'm pointing out that there is give and take to everywhere.
Also everyone keeps talking about working for FAANG but.... The vast majority of US engineers don't work for them.