3 remote interviews, 1 onsite interview, and one panel presentation. HR said the process will be fast, if I show availability, and follow through. They didn't say anything about a panel at a start. and i was asked to study and prepare for a panel in product i don't know, under the premise that they see a good match and want to validate with my presentation skills. They process and the interview reactions were very positive, but they ghosted me for 5 weeks, and didn't respond when I asked for feedback to learn.