I had a phone interview with a recruiter first, then an on-site interview with the hiring manager, the hiring manager's peers, HR, and most of the team members.

Most of the questions were behavior-based, e.g., "Tell me a time when you disagreed with your boss."

I had lunch with the hiring manager while answering questions.

My boss was actually pretty quiet through the process but appeared to be well-tempered.

Nothing unreasonable. The most difficult part is to quickly adjust the types of answers to the interviewer, i.e., technical hardware, technical software, HR, peers, manager, etc. The interview is quite efficient through the day, and I didn't catch every name since their titles weren't all on the schedule.