Extreme Networks Sr. Software Engineer interview questions

One round of hiring manager/ coding interview. Was asked to do an in person onsite interview. There were 5 rounds of system design, leetcode problem and strong focus on design principles. The interview was overall ok. The interviewers were kind and fair. The recruiter called me the day after to talk numbers and got spooked out when I asked about RSUs (!!!) . Kept rescheduling the calls after that and totally ghosted me after that. Highly unprofessional, especially since I attended an in person interview.