It was a phone call followed by 4 hour long interviews where the interviewers asked many different questions from behavioral and technical to design based. Overall, it was not too difficult if you prepare.
I applied through college or university. I interviewed at Microsoft
Interview
1 phone screen, 1 final round interview with 3 back to back sessions. Product design and past project questions. Applied through campus interview process, had a very negative experience hearing back. They offered me a position 3 months after the final round interview because there was a glitch with positions getting filled.
Interview questions [1]
Question 1
Design a new type of globe for a classroom
Design a kitchen
I applied online. I interviewed at Microsoft in Sep 2021
Interview
First round was a 30 min phone call with a recruiter. I was asked the average behavioral questions, one design question, and two technical questions (with no coding, just explaining thought process).
The final round interview was with three different PMs. I was asked many questions about my resume, behavioral questions, technical questions (again with no coding, just explaining), product design, and "what would you do in this situation" type. The interviewers also allowed time to ask questions so research your interviewer to have unique questions to ask them based on their experience.