At this time the Dolby Atmos Renderer running as the Dolby Atmos Production Suite or the Dolby Atmos Mastering Suite is not supported on the new Apple ARM Macs running MacOS Big Sur.  


The Dolby Atmos Renderer running as the Dolby Atmos Production Suite or Dolby Atmos Mastering Suite is also currently not supported on Intel Macs running MacOS Big Sur.