I know a half dozen people who have had children while working at Facebook and all of them have taken all (or almost all) of that time.
I never felt pressure not to take leave. The hardest part was convincing myself that things would keep running without me.
Like, could you, in theory, have a baby making rotation of 3 "girlfriends" with 4 months of paternal leave each per year for an eternal vacation?
It's also just the right thing to do.
I thankfully live in Canada, a civilized country that allows a full year.
I don't know what it would mean if they didn't, though. I think many successful people have trouble believing that their work will be done well in their absence.
There are issues around vacation, especially "unlimited PTO" as a perk, but no one seems shy about paternity and maternity leave.