Steps to reproduce:

1. Create a new Unity project
2. Open the Visual Scripting Graph via Window > Visual Scripting > Visual Scripting Graph
3. Create a new Script Graph or State Graph
4. Open the created State asset
5. In the opened State Graph window, click the "Full Screen" tab
6. Observe the behavior of the window

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Actual results: The State Graph window only enters full screen mode if it is docked. It does not go full screen when undocked

Expected results: The Full Screen tab should expand the window to full screen regardless of whether it is docked or floating

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Reproducible with versions: 1.9.4 (2022.3.62f1) , 1.9.8 (2022.3.62f1, 6000.0.52f1, 6000.1.12f1, 6000.2.0b9, 6000.3.0a2)

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Tested on (OS): Ubuntu 22.04, macOS 15.6

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Notes:

•  The window only goes to full screen when docked