Reproduction steps:
1. Create a new project
2. Create > UI Toolkit > UI Document and open it
3. Drag and drop Radio Button to UI Builder Hierarchy and save changes
4. Create > UI Toolkit > Panel Settings Asset
5. Change Scale Mode to “Scale With Screen Size” in the Inspector
6. Create Empty GameObject and add UI Document Component
7. Attach newly created Panel Settings and UI Document Assets
8. Enter Play mode, click on Radio Button and observe

Actual result: Radio Button is squished or its selection indicator is off center
Expected result: Radio Button is not squished and its selection indicator is centered

Reproducible with: 6000.0.64f1, 6000.2.15f1, 6000.3.1f1, 6000.4.0b1, 6000.5.0a3

Reproduced on: Ubuntu 24.04, macOS Tahoe 26.1 (M4)

Note: issue is not reproducible with other UI Builder Elements