There were 4 rounds overall for the role of PMM:
Round 1 - 30 mins video interview with the Hiring HR personnel
Round 2 - 45 mins video interview with the Hiring Manager
Round 3 - 1 hr video interview with a panel (3 Senior Managers at the same level as the Hiring Manager)
Round 4 - 30 mins video interview with skip-level (VP Product Marketing)