I work for a FAANG in the UK and have not had the same experience, they have been very accommodating generally. Perhaps different teams within your company are different and you could look at moving? Hope things work out for you.
FAANG Europe and FAANG US can be quite different in terms of culture and work-life balance, due to the different cultures of people in Europe vs the US.
The expat thing is definitely real, as if your whole social circle revolves around people you met at work, you'll probably work more.
But yeah, there's substantial inter-team variance within FAANG so might be worth looking for a better fit for you.
