Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Go to File > New Scene
3. Click on "Basic (URP)" template
4. Once selected, click on the "Edit" option above Description
5. Observe that the opened Inspector is uneditable
6. From the toolbar, go Default > Default to reset Editor layout
7. Observe the previously opened Inspector again

Actual results: After resetting the Editor layout, the same Scene template becomes editable in the Inspector, while previously it was not editable

Expected results: The editability of URP Scene templates in the Inspector should be consistent (either always editable or always read-only), and should not change just because the Editor layout is reset

Reproducible with versions: 6000.0.66f1, 6000.3.7f1, 6000.4.0b7, 6000.5.0a5

Tested on (OS): Windows 11

Notes:
- Reproduces with "Basic (URP)", "Indoors (URP)" and "Outdoors (URP)" templates