Light probe visualization occlusion is not smooth when using the "Progressive GPU" Lightmapper and the scene has many light probes

Reproduction steps:
1. Open the user’s attached “GPULightProbeVisualization.zip“ project
2. Open the “SampleScene” scene
3. Open the Lighting window (Window > Rendering > Lighting)
4. Set Lightmapper to “Progressive GPU (Preview)”
5. Click “Generate Lighting”
6. Select the “Sphere” GameObject and observe its light probe visualization

Expected result: The visualized occlusion is smooth
Actual result: The visualized occlusion is not smooth

Reproduced with: 2021.2.0a17, 2021.3.4f1, 2022.1.4f1, 2022.2.0a16
Not reproduced with: 2020.3.35f1, 2021.2.0a16

Reproduced on: Windows 11, macOS Monterey 12.0.1 (Intel)

Workaround: “Progressive CPU” Lightmapper