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SteamOS - Portal 2 gameplay
Steam Deck Gameplay & Best Settings - Portal 2 | SteamOS | Linux Gaming | 60 FPS | Max Settings
Steam Deck Gameplay | Portal 2 | Steam OS
Portal 2 on Steam Deck/OS in 800p 60Fps (Live)
Steam Deck Gameplay - Portal 2 - Steam OS
Portal 2 - Steam Deck handheld gameplay
Portal 2 Running at 4K on Steam Deck
Steam Deck: Portal Series
Portal | New Steam Deck UI Update Beta | Comparison
Steam Deck | Portal 2 | 800p | High settings
Portal 2 - Steam Deck Gameplay Steam OS
Steam Deck Gameplay - Portal 2 (Default Graphics - 1080p)
