Senior SWE at StubHub

I have attended several mock interviews on other platforms. Even though they were supposed to be coding interviews, the interview coach spent most of the time on behavioral questions. He asked very simple array questions, and most of them were random. As far as I know, StubHub doesn’t follow this interview format. Could you please verify the coach's experience with the relevant company? I feel like my time and money were wasted.

Thank you for the comprehensive feedback! Will definitely address the many points you brought up before my interview! Very helpful, direct experience with what I should expect in the actual interview