Path Tracing - PPV vs MRQ

Development Rendering
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Hi, I saw in the documentation that “The Post Process Volume samples per pixel setting is ignored when using MRQ.” I am hoping to confirm two things:

  1. Does this mean that the corresponding Cvar r.PathTracing.SamplesPerPixel is also ignored when using MRQ?
  2. Are there any other CVars or PPV settings that are ignored?

Thanks!