I've actually interviewed for this role twice at Chewy in different teams. The loop structure is a recruiter, then HM screen, followed by four 1-hour loops. These are behavioral and very focused on their Operating Principles. In both roles, the team told me Chewy "was basically Amazon 2.0". One of these roles was purely behavioral questions and the other had one technical panelist asking system design questions. I was not impressed that in both experiences, they took about 5 hrs of my time for each round and didn't have the decency to close the loop (i.e. got ghosted after the final round). My recruiter would miss scheduled meetings entirely or call me 20 minutes after the scheduled time.