Steam OS Appdata %appdata% or local files on Steam Deck

Sometimes you want to open local game data or the AppData Folder, which is not that easily to find on SteamOS, as you are using Wine/Proton to play those Windows Games on Linux.

Heres a example how Proton organizes those directories (here it is a example of Last Epochs AppData-Folder):

/home/deck/.local/share/Steam/steamapps/compatdata/899770/pfx/drive_c/users/steamuser/AppData/LocalLow/Eleventh Hour Games/Last Epoch/Filters

is the path for the equivalent of the following Path in Windows.

C:\Users\USERNAME\AppData\LocalLow\Eleventh Hour Games\Last Epoch\Filters

So you need to go to

/home/deck/.local/share/Steam/steamapps/compatdata/<GAME-ID-OF-STEAMGAME>/pfx/drive_c/users/steamuser/AppData/LocalLow

If you dont know what ID your game has, you can checkup the steam-game ids on this website: https://steamdb.info/apps/