Alright Steam Deck folks who don't know how to make texture mods work with Vortex. First navigate to this mod here and download the manual version https://www.nexusmods.com/fallout3/mods/944 extract it.
Next navigate to the Compdata Prefx folder it should be 22370 go to C Drive, now make your way to the My Documents/Fallout 3/Data Folder. There an Fallout.Ini folder should be present open it and follow the instructions that came with the mod. Now paste the .bsa file from the mod in the Data Folder. You are halfway done at this point now go to your Commom/Steamapps/Fallout3/Data folder do the same thing and drop the .bsa file in that folder as well. Now presto you have working Texture mods on the Steam Deck
The Program version will not work correctly.