Poor ergonomics is actually a large reason why I sold my Deck. It is quite heavy and clearly made for hands bigger than mine, which made holding it for more than 20 minutes quite uncomfortable. Also the joysticks are just awful, awful, awful awful awful. Id say a hall-effect stick mod is basically mandatory.
They were much too big for my thumbs (going off the theme of the Deck in general being made for hands clearly bigger than mine). Too tall, too wide on top, and while I never had to deal with any drift - the deadzones suck to play games with. I keep a gamepad at my desk for racing and flying games and I switched it to a hall-effect gamepad about a year ago and I’ve never looked back. Potentiometer-based joysticks just feel like garbage in comparison and I think are inexcusable to use in a highend gaming product these days. I ended up using the touchpads instead for many things.