I had two rounds of interviews. In the first round, no one asked me about system design.

There were five interviewers in the first round and three in the second.

They were very professional, and the questions were decent. There were no brain teasers, like "how many balloons fit in a room."

Expect lots of whiteboard coding.

The interviewers took notes by typing or by manual copying; don't be distracted by that.

Some interviewers were happy to brainstorm with me and point me in the right direction.

Overall, it was a stressful process, but not in a negative way.