UBS interview questions

On campus interview, OA round followed by technical round. Leetcode medium asked in interview with multiple followups, question difficulty depends on interviewer. Asked few questions on OOPS. Asked about my CP profile.

I had in total three interviews and the order was a bit strange. First, with 1.5 days notice they asked me to attend an in-person interview with the hiring director and an executive director. This round was about understanding what I currently do, why I want to work for UBS, and also included a design portfolio review. Everyone was very kind and we had a great conversation. Despite the initial rush, they contacted me 2-3 weeks later and asked me to talk with a Product Owner about how I approach a project and how I think AI will affect UX. I again had to wait 2-3 weeks when I had a call with HR. I assumed this will be about discussing my offer but the HR representative again asked me the same questions I already answered in the 1st round. After this, I had to wait another 2 weeks when they finally told me I didn't get the job. Overall, at the beginning, I had a very positive experience, but with the unorganised interview rounds and the unreasonable amount of waiting it was a negative experience. Also, HR asked me to send in writing my salaries and bonuses for the past 3 years. I found this request truly unprofessional, given they did not share any details about the available salary range throughout the entire process.