I interviewed for RBC's Investment Banking Summer Analyst program. It was several rounds. They asked usual investment banking summer analyst interview questions. Asked about resume and challenges, be prepared to deep dive on your resume.
One 30 min 1st round, followed by a 1.5 hr superday. The process was online and super convenient and the team was helpful. HR reaches out with decisions 24-48 hrs after call
Generally, interviewers were very friendly, and the process was smooth. Two interviews for final round - technical & case study (which you are given a few days in advance) and behavioural. Logistically got unlucky, but my experience was not representative of the overall experience that I hear from most people.