using easy loading bar and
https://assetstore.unity.com/packages...
Import the asset:
Drag the prefab on to main canvas
Create an on click event on play game button on main canvas
Drag prefab from main canvas into play game button
Find the function loadlevel
enter in the integer of the scene number starting at zero.
Unity Asset Easy Loading Screen Asset Store
https://assetstore.unity.com/packages...
Unity Asset Easy Loading Screen Demo Video
https://www.youtube.com/watch?v=N67Kc...