For instance the default library have it in $XDG/compatdata (If XDG_DATA_HOME is not defined, it will default to $defaultXDG.) If you have installed the game in a custom steam library, it'll be something like that $CustomSteamLibrary/compatdata.
For instance the default library have it in $XDG/compatdata (If XDG_DATA_HOME is not defined, it will default to $defaultXDG.) If you have installed the game in a custom steam library, it'll be something like that $CustomSteamLibrary/compatdata.