DLC from EA App not Showing up in Steam Sims 4 Game

@TDB1726  It sounds like you have two copies of Sims 4 installed, which would explain the problem.  You'll need to uninstall the EA App version of the game, then download ONLY your packs, not another copy of the base game, through the EA App.  When you download just the packs, they should install into the Steam version's program files, allowing those packs to load when you launch Sims 4 through Steam.