Capital One Lead Software Engineer interview questions

I was contacted by recruiter on LinkedIn. Interview process was similar to other reviews, CodeSignal online assessment followed by Power Day. Medium LeetCode style questions on CodeSignal, optimized code is important since I couldn't pass some tests for last question due to time limits but moved onto final stage anyways. Power Day was mostly good, one coding, one system design, one behavioral and one technical case round. Power Day took 3-4 weeks to schedule for some reason. All 4 rounds were average in difficulty, except person doing case interview joined 7-8mins late and didn't even know my name. The questions asked were also quite unorganized, I spent most of the interview trying to figure out what he was trying to get to, as he didn't like my open ended question answers and were looking for a specific answer all the time. Asked like expecting a conversation, but expected a specific answer and I felt like he was very dissatisfied with my answers constantly.