[brazen1]

But KODI does support HDR to SDR and it doesn't look "washed out" or "extremely saturated".  I think it looks very good and my display is decent so I know good vs bad.  Not as good as passing through, which I prefer, but for those that don't scrutinize much, it's acceptable imo.  Simply select pixel shaders KODI adjustment for your render method.  Leaving the setting doesn't affect other playback for me so no harm done and gives yet another option for HDR playback.  Contrary to popular belief, the Windows HDR setting still remains off.  Never turn it on.  Given you are using an RX2080, you have more than enough GPU to decode what ever you want and run stronger algorithms like madVR provides.  I highly suggest you take advantage of your investment and set up KODI to use madVR compatible player(s).  You may want to consider DVDFab Media Player v.3 also.  This way you get full menus.  It too looks very good imo and uses the same private API's madVR does meaning you get full passthrough and the Windows HDR switch still remains off.