AI Foundation interview questions

First round was a recruiter round which went well. On the same day got mail from recruiter saying that the Manager found a relevant person and wanted to continue interviewing with that person and if he performs poorly then they would consider next applicant. If they could only spare time for one person, they shouldn't even have selected others. Even after following up twice, no reply from them yet. So unprofessional

Initial Phone Screen with hiring manager. Next was a take home assignment which involved machine learning and deep learning. After this was a technical software engineering style interview. Lastly was an onsite interview with a research presentation and a couple of meetings.