Sorry you’re having so many troubles. Glad they are taking care of you.

I have two steam decks. One bought on pre-order, the other was aftermarket with a broken screen, so I swapped it to DeckSight OLED. That second one was abused hard by its previous owner, inside and out, but it’s still working great. So for what it’s worth, I think the hardware is solid, if you don’t get a bad one. Every product line has occasional duds