The process was to take 5 rounds: recruiter screening, hiring manager, a co-worker to walk through a product case, and 2 calls with managers from engineering and design. I didn't proceed past the product case round. They gave zero information about the case so that the "process is ambiguous on purpose." Fine, but they ended up dinging me for not being knowledgeable about a use case that had nothing to do with what the role would be in charge of.