Hierarchy V2 Create (+) Hierarchy toolbar button menu opens on the wrong monitor in a multi-monitor setup

Steps to reproduce:

1. Make sure you have two monitors available for testing
2. Set up additional monitor to be to the left of the main monitor
3. Create a new 3D URP project
4. Ensure the Editor is positioned on the monitor on the right and maximized
5. Make sure "Use new Hierarchy window" is enabled in Preferences
6. Reset Editor to default layout
7. In the Hierarchy, click the "+" to create new GameObject
8. Observe the opened window

Actual results: The Create GameObject dropdown menu opens on the secondary (left) monitor 

Expected results: The Create GameObject dropdown menu should open below the "+" button on the same monitor as the Hierarchy window

Reproducible with versions: 6000.3.17f1, 6000.4.10f1, 6000.5.0b11, 6000.6.0a6

Can’t test with versions: 6000.0.76f1 (New Hierarchy not available)

Tested on (OS): Windows 11

Notes:

• Does not reproduce on Ubuntu 24.04 or macOS 26.4
• Does not reproduce with the old Hierarchy