If you’re working with Unreal Engine 4, you can download MetaHumans using the standalone Bridge app. After you’ve downloaded and installed the Bridge app, log in using your Epic Games account. The account needs to be the same as the one you’re using to log in to the MetaHuman Creator app.
For Unreal Engine 5, go to the Quixel Bridge plugin inside the editor and log in using your Epic Games account.
In the left navigation panel, go to MetaHumans. From here, you can download pre-made characters from the MetaHuman Presets view or a MetaHuman that you created from My MetaHumans view.