There are 3 rounds.
1. HR Interview - Seek for culture fit. Interview about your past experiences and how do you manage with conflict and challenges.
2. User Interview (Usually SPM or PM) - Seek for technical fit. Interview about past achievement. Some light case study. Interview your knowledge and mindset of product management.
3. Management User Interview (usually VP Products) - Seek for personality and knowledge fit. Study cases with limited time. You will need to breakdown your solution as well how will you elaborate your way of thinking.