First round with technical recruiter, second round with hiring manager, third round with multiple people: UX designer, data scientist, another product manager. Although had a very good fit with the people you'd be working with (UX and DS) , if you don't have MBA-style thinking towards product mgmt it seems you won't be accepted by product team... maybe Unity finally realized they had too many MBA PMs leading to the recent layoffs.

The interview process was very straight forward and my recruiter Marie-Michèle did a great job of keeping me in the loop and providing updates at each stage. The total process took around 3 weeks with 4 rounds total: HR screening, meeting the hiring manager, a business case presentation, and a final round with three separate interviews with different members of the team.