You’re one of the only people I know reporting the issue on headphones and speakers. Most people in the thread who have noticed it have reported it is only on internal speakers. I also have a friend who like you does audio engineering professionally and also does not notice anything on external audio. I’ll tell you what, make a recording of the popping happening with external speakers and I’ll believe you. The speakers do “click” but not on external speakers or headphones. I've been in this thread for months and said about a month ago I think it's probably a hardware issue.
EDIT: Since you keep claiming I have a hearing issue I took a video of me starting and stopping the video to try and trigger the click. I don't hear anything and I doubt you can either:
. Maybe you should grab yourself a beer because you have super sonic hearing.