When I install Universal RP from the Package Manager (as being taught in a course), the assets (as shown in the course) are not in my editor.

This is how it shows in my editor
This is in the video I’m watching.
This is my Game View (default for new project)

This is in the video (after installing URP).
Can anyone tell me why and how to fix it?
You may have just loaded an empty project.Try creating a new project and selecting "3D Sample Scene (URP) from the templates in Unity Hub.
I can try that although it differs from the course. In the course, they selected 3D core and after installing URP, they have all the assets. I don’t.
I think this was standard, but annoying that always loaded in assets you would promptly delete. Standard now might be to load an empty project.