Please don't take this as an accurate map of reality. There are some FAANGs where you have decent odds of ending up on a team that expects more than 40 hours a week - Amazon and Facebook, in particular (though there are plenty of teams in both companies where that's not the case). Google is much more relaxed; I know plenty of people that do 20-30 hours a week there, and nobody that does over 40 (but I hear it's possible).

Also, you can easily break €100k by working for a FAANG branch office in the EU. Senior engineer comp will be €200k+.