I agree to you, when it's in person.
I think what your describing is mostly the beginning of an answer.
Just randoms "um" inbetween because your struggling to build sentences can get annoying both in person and online
Just randoms "um" inbetween because your struggling to build sentences can get annoying both in person and online
But hearing them from an interviewee drives me crazy, along with "sort of", "kind of", etc. I once counted all of the "sorta"s in an NPR interview, it was brutal.
The first one indicates something along the lines of "thinking, please stand by". The second one is a struggle.