Reproduction steps:
1. Download and open the attached "MacMetalIssue.zip" project
2. Open the "Sample Scene" scene
3. Make sure that iOS build target is selected in the build settings
4. Make sure that AMD graphics card is being used. Go to Unity->Settings->General->Device To Use and Select AMD Radeon GPU. The bug did not repro when selecting Intel. It also does not repro on Apple Silicon
5. Observe the Scene view window
Expected result: Lightning is rendered correctly
Actual result: Lightning is not rendered correctly
Reproducible with: 2019.4.35f1, 2020.3.27f1, 2021.2.10f1, 2022.1.0b6, 2022.2.0a3
Note: Screenshots of Actual/Expected outcomes attached below