How to reproduce:
1. Open the attached "InspectorET" project
2. Open the "New Scene" scene
3. In the Hierarchy, right-click on the "Test" GameObject -> "Properties..." to open the focused Inspector
4. In the Project window, select the "GameObject (1)" Prefab
5. Observe the focused Inspector

Expected results: The size of the main tab inside the focused Inspector didn't change
Actual results: There is a slight change in the size of the main tab in the focused Inspector

Reproducible with: 2022.2.0a15, 2022.3.44f1, 6000.0.17f1
Not reproducible on: 2021.3.43f1, 2022.2.0a14, 6000.0.18f1

Reproducible on: Windows 11 Pro
Not reproducible on: No other environment tested

Note: Reproducible when selecting Assets with Components (e.g. not reproducible when selecting the Scene or a folder)