Reproduction steps:
1. Open the attached "IN-136078_PROJECT_FIX1.zip" project
2. Open the “Assets/Scenes/SampleScene.unity” scene
3. Enter Play mode
4. Observe the Game view, compare the shadows cast by the spheres

Actual result: Shadows are the same size
Expected result: Shadows match their casters

Reproducible with: 6000.3.0a6, 6000.3.11f1, 6000.4.0b12, 6000.5.0a8
Could not test with: 6000.0.70f1, 6000.3.0a3 (CS1061 error, no RSUV support)

Reproducible environment: Windows 11, macOS 15.5 (reporter)
Not reproducible environment: No other environments tested

Workaround: Enable "SRP Batcher"

Notes:
- The issue reproduces in Player and Play mode, in both Scene and Game views
- This issue reproduces even if SRP Batcher is enabled, provided the shader does not support SRP Batcher