Does OSMC Skin Show Dolby Atmos flag on Movie Library?

This is the long answer:

It relies on whether Atmos, DTS:X or AURO-3D are present in the file name as described in the link AND whether the primary audio track is one which can be the base for Atmos, DTS:X or AURO-3D: e.g. an Atmos label does only show up, if Atmos is present in the file name AND if the primary audio track is Dolby TrueHD or Dolby Digital+.