I don't know that any open source project will ever compete with Unreal and its high end tech targeting the AAA space. But beyond that, Raylib doesn't give a ton of things an engine does because that is not the point of a library like it. This is to let someone build their own engine how they want, Unreal/Unity/Godot/etc let you give up some control and decision options to skip a ton of work building out a lot of basic features.