I own a Steam Deck. It's a fairly glitchy experience, especially on a TV. With constant micro problems like "the steam deck won't restart when plugged into my Sony TV, physically unplugging the USB C cord is necessary".

There's lots of fun issues like "Yes the Steam Deck supports Switch Pro Controller, but enable gyro controls and it will make a grinding sound when gyro is used" and "gyro controls work fine in handheld mode, but try them in Half Life 2 with a PS5 or Switch Pro Controller and the movement will be choppy and janky even though that game was supposedly updated for Steam Deck."

There's also fun, more serious issues like a documented "Steam Deck crashes and reports low battery, refusing to even boot up for more than a few minutes if you have poor wifi signal" which necessitated getting a wifi booster.

I also just got soft locked in Portal 2 due to a bug, requiring me to restart the chapter, my save was unbeatable as the elevator to go to the next level wouldn't operate, and I googled this error and it's also present in the Switch port of Portal 2. I guess Valve is too poorly staffed to patch a 13 year old game breaking bug.

Valve seems to only finish their products to about 90% to 95%.