Interviewer was calm and relaxed and focused on getting to know you as a person whilst also testing your approach to problem solving If you're part of the open day this might be explaining your assessment as well.

Went to London office for in person interview. Immediately given a 1 hour Power BI exercise to do which I hadn't been told about beforehand. Then spent 1.5 hours on generic interview questions and Q&A. Received no feedback for 2 weeks and was then told I didn't get the job. Asked for feedback and received one line of generic feedback not specific to me. Still don't know why I didn't get job or how I could improve for next time