PLAUD AI interview questions

I applied through LinkedIn and had a recruiter screen, System Design Interview, Coding round, and behavioural questions. I got the offer and scheduled an offer discussion round, but nothing concrete was decided in that round. The recruiter was a little rude, saying that many people are waiting in the queue and they will decide accordingly. I found it strange and unprofessional. A few days later, she went radio silent, and when I pinged her, she said the offer is still in the internal approval process, and there is no update. A few days later, again no response to my email. A few days later, I ping again and get a rejection email.