Look up Decky Loader. It’s probably what you’re seeing with people using plugins on the Deck. I like using CSSLoader on it to change the Steam Deck’s theme and Animation Changer to change the startup animation. ProtonDB Badges is also useful for seeing how well a game will run on the Deck. It’s more comprehensive than the Steam Deck Verified label.

Mine’s completely fine and I exclusively use it with wired headphones (512 GB OLED with Audio Technica ATH-M50x headphones if that helps). No problems with dead pixels or loose buttons either. This sub had me convinced I was destined for a defective model one way or another, but nope, works and plays great.