My guess is that the interview difficulty, hiring bar, and interview types (code, design, etc.) depend on the level you are interviewing for. I interviewed for L4 specifically (I believe the title is SWE III).

The process began with a quick HR phone call, followed by a technical phone screen, and finally, the virtual onsite, which included four coding interviews and one behavioral interview.

I passed the onsite and met with a couple of hiring managers for the team matching stage. During team matching, I withdrew from the process. I had a strong offer from another company that was about to expire, and I felt my Google recruiter was taking too long to respond. I didn't receive an explicit offer, but they implied I would get one once I found a team.

My technical screen questions were easy to medium, but the onsite questions were somewhat harder. I started every onsite interview looking at the problem and being completely clueless as to how to solve it. However, by following advice from resources like CTCI, I devised a basic approach that worked. I then iterated with some help from the interviewer to write reasonable code – not amazing code, but reasonable.

Cannot give away anything due to NDA.