Microsoft Senior Software Engineer interview questions

All virtual interviews. Initial phone screen round consisted of 2 questions. Next Round One hard question from leetcode followed by 2 design interviews and one hiring manager round. All are average difficulty level.

I went through a phone screen which consisted of LC med and LC hard, the next step was the interview, the first interviewer asked 4-5 LC questions in quick succession, ranging from Med to hard, for some I had to write the code, others they just wanted to check for the approach. I was asked system design questions on finding the bottlenecks in a system with a given parameters and had to come up with a solution to mitigate the answers