More than 14 thousand games are already compatible with the Steam Deck portable console
Steam Deck has become a successful product for Valve, as it allows you to play both indie and AAA games like Red Dead Redemption 2 in a portable format anywhere. The portable console was launched in February 2022, and in two years, the library of games compatible with the device has become quite extensive.
Here's What We Know
Currently, there are more than 14 thousand games that are compatible with Steam Deck. Of these, 4,604 have the status of "tested", and such games do not require additional settings. Another 9,406 games have the "playable" status. This indicates that you may need to play with the settings to play comfortably.
It's also worth noting that 3,920 games in the Steam catalogue do not support Steam Deck, and it's unlikely that you'll be able to play them. You can check the games that support Steam Deck either on a special page on Steam or on the SteamDB website.
Source: gamingonlinux