After joining the Teams call, the interviewer greeted the recruiter then jumped right into a monologue. After 6 and 1/2 minutes I interrupted at what looked like a natural pause and introduced myself while saying he didn't ask for my name.
Afterwards in the most awkward interaction I've ever had in an interview, he insisted that he greeted me then apologized for wasting my time, ending the call with "the vibes are off".
It was easily the funniest and least professional interviewing experience of my life.