Someone on the sub found a fix if you are interested https://www.reddit.com/r/SteamDeck/comments/188fxu1/fix_audio_cracklingstatic_on_35mm_headphone_jack/

Mostly. I don’t use my pc near as often because it’s in a cold basement. I’d rather game on the warm main floor than in freezing temperatures

Quick question, what is the point of having your steamdeck plugged in if your desktop is?