The first Steam Deck video ad for throwing shade at the Nintendo Switch in the process.
The ad is only a minute long and can be seen either below or on CS:GO's Broken Fang event went live back in December 2020. The video shows the Steam Deck playing games such as Doom Eternal, Star Wars Jedi: Fallen Order, and The Ascent, as well as a run-down of its feature.
The video shows off Steam Deck's various buttons and also calls it "portable gaming without compromise", before going into the various different versions of the console, but it does talk about having all of Steam's features and all of Steam's games.
Check out the full Steam Deck ad below, where you can also in the shock that Valve ed its YouTube channel exists.

Perhaps even more intriguing is the tweet from Xbox head Phil Spencer today, where he revealed that he, Microsoft's xCloud streaming service "works well" on the handheld.
Was @valvesoftware this week talking w/ Scott, Erik, Gabe about Steam Deck. After having mine most of the week I can say it's a really nice device. Games with me on the go, screen size, controls all great. Playing Halo and Age feels good, xCloud works well. Congrats SD team. pic.twitter.com/q4hWBvkk85
— Phil Spencer (@XboxP3) August 13, 2021
Steam Deck should be out in December got "built-in " for mods too, apparently.