Amazon Web Services Software Development Engineer interview questions

Three coding questions were given, followed by behavioral questions over the course of 3 hours and 3 interviews. Was given coding questions from leetcode (medium) that were not to difficult to solve. Interviews seemed a bit harsh when talking to me off the bat, not sure why.

OA with a workstyle assessment and leetcode, virtual onsite with 3 rounds (1 about just leadership principles, 2 technical rounds). Technical rounds had low level design and leetcode similar questions also.