Reproduction steps:
1. Create a new project
2. Create > 2D > Physics LowLevel Settings
3. Click on newly created Asset to see its parameters in the Inspector
4. Type a long number into first input field in any parameter that has two input fields (e.g. Default Definitions > Physics World Definition > Gravity parameter)
5. Observe both of the input fields

Actual result: First input field expands and second field is being pushed away from Inspector window bounds
Expected result: Nothing of note happens

Reproducible with: 6000.3.0b4, 6000.4.0a1
Couldn’t reproduce with: 2021.3.57f1, 2022.3.67f1, 6000.0.59f1, 6000.2.7f1 (No Physics LowLevel Settings Asset)

Reproduced on: Windows 11, macOS Sequoia 15.4 (M4)