[fritsch]

The file you link does not reflect the file you play. Above google drive seems to be down, but it tells HEVC while the log plays VP9.

Can you try: ok_Sony_4K_HDR_Camp.mp4 - it's also somewhere available, with that file you can see kodi's Reinhard implementation. It's not the latest and greatest HDR available on this planet but it works quire okayish.