I had an OA with 16 questions and had 20 minutes to solve them. The questions were relatively easy but it was hard to solve everything under the time constraint. I heard that you need to get at least 12 questions right to pass the round.

OA -> phone interview After the discovery day, there are another two rounds. OA is quite easy, one leetcode easy, one medium. Phone interview is quite intense, there are three stages: pre-screen -> project experience -> your questions