https://wccftech.com/steam-deck-shipping-delayed-until-february-2022/

The launch of the Steam Deck will have to wait a couple more months. According to Valve, the Steam Deck will not be able to meet its December 2021 shipping date, and instead, every order will begin to be fulfilled from February 2022 onward... Add that to the pile of games and hardware that is going to be released that month.

Nevertheless, Valve's statement on the matter was made on a blog post that reads as follows: