It seems the popularity of the new Steam Controller really did catch Valve off guard, with it selling out a lot faster than expected. I thought it would be popular, but not to the point where it was able to crash the Steam checkout process and have scalpers jump in.
Until you manage to get one - be sure to check out my initial GamingOnLinux overview of how well it works.
We at least have an update direct from Valve on the situation now. As posted on Bluesky, the official Valve account said: "Steam Controller ran out faster than we anticipated, and we hate that not everyone who wanted one was able to get it. We’re working on getting more in stock and will have an update on expected timeline soon."

We'll let you know as soon as we know if there's any more info on when they come back in stock properly.
Quoting: Purple Library GuyThere is a cynical side of me that says the buzz surrounding "Gizmo sales crash site, gizmo sells out in hours" is bigger than the buzz surrounding "gizmo sells this many units out of a large stockpile" even if the second number is bigger. So, what's the motivation to fix it?It's definitely a better headline than "$vendor gets rid of unwanted inventory in a massive firesale," that's for sure.




How to setup OpenMW for modern Morrowind on Linux / SteamOS and Steam Deck
How to install Hollow Knight: Silksong mods on Linux, SteamOS and Steam Deck