I received an email asking for my availability within the next 2–3 business days for an interview, and I replied the same day. I did not receive a response until two business days later, around 5 PM. We then scheduled an online interview for the next day, and I received a reminder from the recruiter two hours beforehand.
I joined the interview early, but no one attended for the full 30-minute scheduled time. I sent a follow-up email afterward and have still not received any response several weeks later. Even if they decided to move forward with another candidate, a brief update or communication would have been appreciated.