Email from hr to schedule the first round interview with hr, 30 mins hr call and know work experience and education, your technical skills and the details of your current job

Applied thru Linkedin and a recruiter reached out 2 days later. We set up a phone screen which went great and just minutes afterwards, she set me up with 3 first round interviews. All 3 were a mix of behavioral/Amex based questions. Some questions were a bit thought provoking and tricky but nothing too crazy. Final interview with the VP felt like more of the same. All 4 interviews were in the same week, 2 back to back, 1 the next day and 1 the day after that Waited 3 days after the final interview to reach out to the recruiter, she told me they'll have an update tomorrow . The next day is when they extended an offer. She gave me a day to think about it and after some negotiation, I accepted. Application to offer took ~3 weeks