Steps to reproduce:

1. Create a project
2.  Go to "Project" -> "Asset" section -> right click ->Create ->UI Toolkit -> UI Document ->leave default proposed name -> click "Save"
3. Double click on it and verify that "UI Builder" window should be opened
4. Drag and drop UI Builder next to the Game view in the editor
5. Find "Hierarchy" section in the "UI Builder"
6. Select in it newly created UXML object/file
7. Go to "Inspector" window in the "UI Builder" 
8. Fall all three sections - "Canvas Size", "Canvas Background" and "Document Settings"
9. Observe that scrollbars are not displayed
10. Expand "Document Settings" section
11. Observe window

Actual result: Scrollbar becomes visible, which is not needed. And if user uses it window UI becomes messy. Added screenshot and video in the "Attachments" section.

Expected result: Scrollbar is not needed. Everything fits to the screen.

Reproducible with: 2021.3.20f1, 2022.2.9f1, 2023.1.0b7, 2023.2.0a5.

Not reproducible with: 2020.3.46f1 -> functionality not available.