Ramp Sales Development Representative (SDR) interview questions

Have interviewed with 15+ companies in the last 2 months and this was my worst interview experience by a stretch (unfortunately, because this company is special and growing very fast). Interviewed in 2nd round by a recently promoted sales manager with less than 1.5 years of sales experience total. Seemed careless and unenthusiastic to be on the call. Showed up 10 minutes late. Camera off ('wifi bad in the office'). Asked me basic questions, answers followed by long cold pauses, not conversational, no feedback. Briefly opened it up for questions, didn't have answers to 2 which I asked, and then cut me off from further questions to challenge my experience further. I'm certain this company will continue to do well but this process should be facilitated by more personable/tenured employees. Left me with a bad taste in my mouth.