I think that’s probably true - I tested it with audiophile headphones (Campfire ARA) and the white noise was super loud

It’s a super high sensitivity ear bud so that probably made it worse (for me)

I have a Steam Deck OLED LE and can confirm the same issue

I think it kind of disappears once I move into a game (tested on Celeste and couldn’t hear the static noise in-game) but in the steam UI it’s very apparent