Revolut Project Manager interview questions

Absolutely amateur, one of the worst interview processes I've ever been through and a complete waste of time for all involved. A recruiter initially reached out to me on LinkedIn, set up a screening call for the following week. Very standard. Following this (and being told there's 6 rounds, which itself is a red flag) I was invited to the "problem solving" interview, effectively a consulting case interview. It was initially arranged for 2 weeks time (again, red flag, no one seems to be ready for the process). Week of the interview it is rearranged for the following week. Interview finally arrives, the interviewer couldn't be less bothered and clearly didn't want to be there. They opened the case study interview and then proceeded to half ignore me, answering messages at the same time as listening to me working through the case. On multiple occasions they gave me an answer that when I took forward they then disagreed with. E.g. Me: "Why is [x] a problem?" Them: "Because of [y]" Me: "Interesting, and what's the impact of [y]? Can I assume [z]?" Them: "No, [z] is not an issue" Me: "OK, then why is [y] a problem?" Them: "There is no problem with [y]" One of the most frustrating exchanges I've had in a long time. The interviewer on fully engaged at the end when the case part was over and I asked questions about their experience of Revolut - spent 10 minutes of the 30 minute interview saying how much they enjoyed their team having to work so hard.