I was the one who posted the loud Xbox One X video in this thread.
https://youtu.be/GqCozmM-Ako
I took my Scorpio Edition Xbox One X back to Best Buy yesterday as it seemed to be getting worse. I did an even swap with a standard edition Xbox One X. But they let me swap controllers so I still have the Scorpio Edition one. I actually like the look of the standard Xbox One X more, so win-win!
Anyway, the new Xbox One X didn't make a single peep all night as I played Assassin's Creed Origins!
It's silent!
If your Xbox One X's fan gets really loud during game play (mine sounded like a strong wind through a gap in a window), there's something wrong with it. Take that sucker back!