How to reproduce:
1. Create an empty Unity Project
2. Left click any docked Window in the Editor
3. Drag the Window into various spots while holding the Left-click
4. Observe the Editor
Actual result: The Window overlaps the full subwindow, sometimes the whole screen
Expected result: The Window preview should only cover the portion of the screen it is assigned to cover, staying within its designated bounds. This should match the behavior seen on other platforms
Reproducible with: 6000.0.0f1, 6000.0.80f1, 6000.3.21f1, 6000.5.7f1, 6000.6.0b7, 6000.7.0a4
Reproducible on: Ubuntu 24.04
Not reproducible on: Windows 11, MacOS 26.5 (M1)
Note: Reproduced on both Windowing Protocols: X11 and Wayland