Most people I know say the same, but they stay. You can be at a non-FAANG and work for half the pay (and often be just as miserable) or you can work at FAANG, own a house, not worry about money, and often do not much work. Misery is part of the package.
But isn't that a bug? It's not that hard to find a non-FAANG job that pays well, lets you own a house, and not worry about money without having every working day be a misery.
While you absolutely take a huge pay cut to not work at a FAANG, it's not like making 200k+ is living in poverty.
Typically non-FAANG also has other perks: many more fully remote options, typically much more chill about working hours, working with niche tech stacks or on new problem spaces, etc.
You can enjoy work and still have a house and not have to worry about money at a non-FAANG, just not as aggressively much as you do at one.
I've had Canadian coworkers at multiple companies where Senior Engineers made 200k+
Not saying non-faang can't have that stress, more just that sometimes the expectations are drastically different and that can feel like a sink or swim thing for people. I'd also say it depends on where you get placed in a faang company, some teams are more dynamic and free wheeling than others which I'm sure plays into it.
TL;DR don't throw out a basket of companies because you think they're the same