UnityEditor.MainToolbarWindow shows up in Panels and does nothing when clicked

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Observe the Panels dropdown (Windows > Panels)

Actual results: UnityEditor.MainToolbarWindow shows up in the Panels dropdown and nothing happens when clicked, also UnityEditor.MainToolbarWindow is not a user friendly name

Expected results: UnityEditor.MainToolbarWindow either doesn't show up in Panels since it has no functionality or functionality is added for this context and has a user friendly name ("Main Toolbar" for example)

Reproducible with versions: 6000.3.0a6

Tested on (OS): Ubuntu 24.04, macOS SIlicon Sequoia 15.6.1