Slack interview questions

Interview involved take home exercise to write QA test plan before actual phone interview was set up. I had never used the product so I had to download and understand it first before I could do the exercise. There was one onsite and one zoom interview after the phone screen.

Recruiter reached out to me, she seemed nice but not entirely professional. Was late for a phone screen, the questions she asked it was apparent she had no idea what an acceptable answer was, etc. I found it hard to even ask/understand what the position entailed exactly because the recruiter had so little knowledge about the industry. For the phone screen with the hiring manager it was apparent within a few minutes she wasn't interested, even asking me to hold for a few minutes while she went and did something off the phone. I figured out pretty quickly this was a position I didn't have the exact experience they were looking for, so I'm not sure why I was even pushed into the interview by the recruiter. The hiring manager was completely disinterested in any of my responses and it was obvious before the conversation even ended that I wouldn't be moving further along in the process. I was completely unsurprised to not even receive an email from the recruiter afterwards letting me know either way. Overall an odd and fairly unprofessional experience. Again, I was reached out to initially for the position and the entire experience left me with a bad impression of Slack in general.