Yes, your recruitment manager is your #1 resource and a coach of sorts. Absolutely bring up questions with them and make sure you are clear on what may come up in the interview.
Don't bring perceptions of joke answers online into your real job interview!
Eh, when I interviewed my recruiter was definitely friendly and willing to answer questions, but didn't really have any actionable information about what to expect in the interview. Answers on Quora/blog posts were actually a lot more useful. However, later on in the process during team matching and negotiating an offer the recruiter was much more helpful.
Coach is a good word, at least with the experience my wife had. She felt she was talking to a "friend" that wants you at Google, vs someone on the other side.
Don't bring perceptions of joke answers online into your real job interview!
(Google Cloud Employee)