Received the newest media player today from Dune HD, the “Dune HD Pro Vision 4K”. It uses the Amlogic S905X4 SoC and running the Dune HD Linux modified OS. It does not play the Dolby Vision Profile 7 FEL under Kodi version 21.0.1 without enabling the “Dolby Vision compatibility mode”. It gives a green/red screen and no video.
It does have a microSD card slot, so it may be possible to run CoreELEC.