Steam can’t open this type of shortcut, so we’ll have to help.
Here, you’ll want to copy the URL field found in the “Web Document” tab and save it. Right-click the shortcut and select “Properties”. Head over to your Desktop and locate your new shortcut. Click the … next to the game and select “Create Shortcut”. When in EGS, head to the library and search for your game. You’ll need to find the launch URL for the game you want to play on Steam. Any text after // is the game you’re attempting to launch. The handle registered to the Epic Games Store Launcher is ://, and a URL with this prefix will send you to the EGS Launcher. We’re going to use the EGS launcher to our advantage. Playing EGS Games Through Steam: Step-By-Step Guide
If you want to play EGS games while using Steam, you’re in luck, because with a little work, you can successfully add those games to Steam. Unfortunately, EGS doesn’t have several features that Steam users have become accustomed to, like Big Picture Mode, remote play and remote download, broadcasting features for streaming, and even parental controls. Epic Games Store has many excellent games, including Assassin’s Creed Valhalla, Tiny Tina’s Wonderlands, and, of course, Fortnite.