Valve will let Steam Deck owners install Epic Games Store, Windows OS - Polygon

All-in-One: How to Add Non-Steam Games to Your Steam Library

How to install Battle.net on the Steam Deck

How to see the estimated time remaining for a download on the Epic Games Store - Quora

Why is my Epic Store download so slow? - Quora

Steam Deck: How to easily install the Epic Games Store launcher

Epic Games on Steam Deck - A Guide UPDATE + using SD Cards

How to Install Windows on Steam Deck

Can I move files from epicgames to steam? I've gotten a new game

Sorry if already posted: After installing EG through proton you can add the games as non-steam games without issues. Was easier and faster for me, than using Heroic (Covers added with Steamgrid

Heroic Games Launcher gets a big Hotfix to clean up some issues