Rainbow Six Siege and GTA 5 now "Playable" on Steam Deck, despite anti-cheat

Valve has just issued an update to its Steam Deck compatibility ratings for GTA 5 Enhanced and Rainbow Six Siege, declaring them both as Playable. That's despite both games using the same BattlEye anti-cheat software that blocks Linux gamers, like those using Valve's handheld gaming PC, from playing online with other gamers.
While the Steam Deck continues to be the best handheld gaming PC for most gamers, consistency with the platform's verification ratings has been a problem for some time. While GTA 5 Enhanced's main offline mode doesn't require anti-cheat, GTA Online does, as does Rainbow Six Siege, leaving a question mark over why the rating has been changed.
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