Capital One Sr Software Engineer interview questions

The interview process was intense. First you have to pass an online CodeSignal assessment. When I took the assessment I had to get 2/4 of the questions correct to being invited to a face-to-face interview. From there the actual interview day was split into 4 virtual interviews. A coding assessment, a system design assessment, a case study and a behavioral interview. The coding assessment and system design assessment were both to design a banking application while the case study was to analyze cloud computing performance and fix a section of code. Overall I would rate the technical difficulty of the interview questions as easy to average. The behavioral interview was in the STAR format and the interviewer asked questions on how I have previously handled conflict in the workplace. I left the interview process feeling confident about my odds but got a rejection email the following workday. Unfortunately Capital One has a policy where they don't offer feedback into why you were rejected. I would rate my experience as positive because all of my interviewers were very respectful however I am left feeling a little frustrated since I invested all this time into the interview process with nothing to show for it.