How to reproduce:
1. Create and open a new project, with “Universal 3D” template
2. Right click in the Project tab and navigate to Create > Scene > Scene
3. Open the newly created scene
4. In the Hierarchy select the “Main Camera” GameObject
5. Observe the Hierarchy

Expected result: Scene is not marked dirty
Actual result: Scene is marked dirty

Reproducible with: 2023.1.0a1, 6000.0.55f1, 6000.2.0f1, 6000.3.0a4

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:
- Reproducible when using Universal or High-Definition Render Pipelines
- Does not reproduce when using Built-In Render Pipeline
- Does not reproduce when creating a scene from templates other than “Basic (Built-in)”