Currently tuxDB.com found games that are Steam Deck categorized

Verified: 4749

Playable: 9788

Not working: 3933

In-game interface text is legible on Steam Deck
Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
◾ This game requires manual configuration of graphics settings to perform well on Steam Deck
◾ This game doesn't support Steam Deck's native display resolution and may experience degraded performance

Check Steam Deck categorized games based on your Steam Name/SteamID