How do I use "Blur GBuffer Intensity"?

I couldn’t find the Blur GBuffer Intensity parameter.
PostProcessingVolume doesn’t have the parameter.
PostProcessing Examples in Content Examples has Blur GBuffer Intensity section, but their PostProcessingVolumes don’t set any postprocess.

How do I use Blur Gbuffer Intensity?
Perhaps, TemporalAA contain bluring GBuffer?


It used to exist as a setting in the PP but apparently not anymore.

Same issue, did a thorough search & turned up nothing.