My own personal and completely based on anecdote opinion on note taking is that I can write notes while paying attention to something else, but typing has a much higher cognitive load, so more of my attention is focused on operating a keyboard vs. listening.

I'm also someone that needs good visual organization to really study and learn things, so a habit I built in college was to write all of my notes, and then later transcribe them to computer. That helped it flow through my brain twice, organize the notes, and also do so when my sole task was working with the notes rather than capturing notes AND listening at the same time.