One of the few obvious weaknesses of Valve's Steam Deck was support for Easy Anti-Cheat titles. Epic, who make EAC, had already announced that Fortnite will not support SteamOS, apparently just to hurt Valve; Bungie, who make Destiny 2, have also refused to support the Steam Deck, although whether they're taking that stance to ingratiate themselves with Sony (who are in the process of acquiring them), or just to be dicks, is not known.
Thankfully, though, not every developer of an EAC-laden title is so short-sighted. As reported by
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This is great news for Valve's newly-released handheld PC, because EAC really is the Achilles' heel of the thing. A quick look at ProtonDB's EAC page shows both the problem, and the progress that Valve is making here, but the more momentum that Valve can achieve by convincing developers of EAC titles to support Steam Deck, the better.
In other news, overall progress "Deck Verifying" games is also brisk:
Man, Q2 2022 can't come soon enough...