Labcorp Immunoassay Scientist interview questions

The first interview was with HR and went absolutely smooth. Classical generic questions about study background. Second Webex interview with 2 people (science lead & operation manager) was quite awkward. One of them looked like she was bored and wishing to be anywhere but in front of the laptop conducting the interview. I was expecting STAR questions but in the end, the questions were very technical. Overall I got the feeling I was interviewed just because. Which is really upsetting.