The interviewer was very aggressive and didn't provide clear information. During the interview, it felt like he was doing something else and muted himself without realizing it. He asked the same question twice without acknowledging the logic of the interviewee. In general worst interview experience ever.

First interview was smooth, my interviewer was very friendly. General background about yourself for the first ~15min followed by a case for the next 15min. Case was big and not a 15min one, but they were looking for structure and initial step I guess. I got through the structure, followed by market size of the disease in ~ 10min... and we wrapped up the process.