Reproduction steps:
1. Create a new Unity project with a Universal Render Pipeline template
2. In the Hierarchy window select Directional Light Game Object
3. In the Inspector window in the Light component select Shadows > Shadow Type > Soft Shadows
4. Go to File > Build Settings
5. Switch Platform to Android
6. Go back to the Scene view and observe the shadows

Expected result: The shadows are not jagged
Actual result: The shadows are jagged

Reproducible with: 12.0.0 (2021.2.0b15), 13.0.0 (2022.1.0a11)
Not reproducible with: 7.7.1 (2019.4.31f1), 10.6.0 (2020.3.20f1), 11.0.0 (2021.1.25f1)

Notes:
- When installing and running the application on a device, shadows also look jagged
- Jagged shadows can also be seen when selecting the Hard Shadows type