Received an email saying that Microsoft would like to speak to me over the phone after applying online. Interview went smoothly enough and consisted of a couple of brainteasers (the marble one listed and one other). I received a generic rejection email a week later saying that Microsoft decided to pursue other candidates.

1 Phone Round that was 30 mins where I was asked a mix of technical and behavioral questions. 2 back to back 45 minute interviews each with 1 coding question.