Two rounds of research introduction with interviewers who may or may not match your research focus. And they asked some behavior questions for research and hypothetical situations. It's interviews before going into the hiring committee.
I applied through an employee referral. I interviewed at Google
Interview
Describe my research area with few questions. Two phone interviews. If you failed in any of the phone interview, they will arrange a third interview. If get passed for phone interview, you will be put into a pool for a team match.
2 interviews, with no coding. Talked about my own phd research, and then the interviewers asked me basic questions about ML and NLP. Most of the focus was on pre-trained language models.