More than three rounds. All in person, which required travelling + taking off work. Interview after interview all went well, then radio silence for months. No decency to reply back to my follow up email, only for me to receive a very automated rejection notification weeks later.

Five rounds, including one in-person. One interviewer was a no-show and had to reschedule, which hasn't happened to me at any other company over dozens of interviews. Ghosted me for two months, ignoring my follow-up. Rejected two months later in a one-sentence email from someone I'd never interacted with. But they can do whatever they want because they're JP Morgan.