For years xbox gamers have said "I cant hear it / it is silent". So series x is loudest modern xbox then, or gamers have been lying?
In reality there is no silent console with moving parts, even switch can be heard from 2-3m away docked, on normal silent room.
So this report is probably non-biased and current gen XBOXs are noisy as are ps4s.
Also without data of his gaming room, it is hard to tell how loud it is. If he sits far / close or have noisy aircon or not = could be quiet, or loud system
You can go look at sound tests for all the Xbox One systems, but the 1X runs around 20-25db. I can't hear this when I play. It's not out of the realm of possibility that the Series X is even quieter.
Tommy McClain