Recruiter reached out to me on Linkedin and asked me questions as though you would find on an application or "basic questions to ask someone interviewing", then pushed me on to a recruiting manager. The person was in charge of another group but not the person I would be reporting to, the person was argumentative and condescending about the experience. I got an automatic reply from the recruiter who reached out to me, I followed up with him asking for detailed feedback and he then ghosted me.

Long but thorough and well documented interview process. They left no stone unturned but that gave me good confidence when an offer was made. Be prepared and do some studying beforehand.