This was a refreshing interview that did not focus on leetcode style questions. Instead, I was asked to progressively build some functionality. There were three 45-60 minute interviews with several minutes left at the end for me to ask questions. All of the interviews were great and laid back. They would help if I forgot a semi-colon or something somewhere, but it was up to me to explain, design, and code the problem.
It was helpful to know larger concepts like matrix manipulation, graph concepts, and classes/inheritance, etc. but there were no questions based on some obscure trick. I thought the questions did a great job of testing for a broader understanding of software engineering skills, rather than just leetcode memorization.