Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Enable Hierarchy V2 (Unity > Settings > General > Use new Hierarchy window)
3. Type something very long in to the Search bar in Hierarchy V2 until it's filled
4. Observe the Search bar

Actual results: There is an empty space that the text does not fill

Expected results: The full search bar is filled with text

Reproducible with versions: 6000.3.0a6, 6000.3.0b2

Can’t test with versions: 2022.3.66f1, 6000.0.58f1, 6000.1.16f1, 6000.2.5f1 (Feature doesn't exist)

Tested on (OS): Ubuntu 24.04, macOS Silicon Sequoia 15.6.1

Notes:

• Does not reproduce in the old Hierarchy