If you have a reservation, you will get your Steam Deck by the end of the year, even if you haven't received your order yet. You will get your Steam Deck in Q4 even if you make a new reservation.
Valve wrote in a post that they are going to be able to fulfill demand sooner than they had thought. Many of the supply chain shortfalls that affect steam deck are gradually clearing up and we are able to produce more Decks faster than ever before.
Great news: Everyone who currently has a reservation can get their Steam Deck by the end of this year! We’ve cleared up supply chain issues, a bunch of folks got moved up to Q3, and all other reservations are now in Q4.— Steam Deck (@OnDeck) July 29, 2022
More details here:https://t.co/Xj2yEHqpKZ pic.twitter.com/floa2xZelK
You might want to check your reservation window to see if things have changed since you had Q4 or later. In April, it began sending reservation emails twice a week and in June it said it would double the number of Decks it shipped per week.
The Steam Deck was rough around the edges when it first launched, but Valve has released a lot of updates in the months since that make the handheld gaming PC feel more fully baked I wrote about the Deck's incredible control customization options a month ago. If you hear chatter about the noisy fan, a software update will turn it down, and you can fix it yourself.