I'm curious how this usually plays out. Do employees of acquired companies need to go through the google interview process?
Unless they're part of leadership they usually do, yes.
Does that really happen? I figured that an event like this is a good excuse to clean house a bit, but it seemed to me that this was the exception rather than the rule- how common is this and what is the process by which one gets unemployed?
Chaos Monkeys talks a bit about this where they had acquisition interest but not all the founders/employees passed the interviews