support of HLG (hybrid log–gamma) Sony .HIF photos

[campus]

Hallo,
I am trying to use XnView MP 1.8.0 x64 (on Windows 11, HP AMD Notebook, HDMI connected to a LG OLED TV 65G2) to view photos from Sony a6700 .HIF, HEIF (4:2:2), color gamut: BT.2020, color space: BT.2100, HLG (hybrid log–gamma) HDR, 10 bit, but they look (both on the internal notebook monitor and on the LG TV) washed out and very different from how they look connecting the camera to TV via HDMI or viewing the photos by Sony "IEDT Viewer" software (but IEDT Viewer has no full screen viewing mode so I am looking for other software). Windows 11 display setting is set to HDR and so the TV goes to HDR10 mode (not HLG but HDR10).
Is there any plugin or setting to solve the problem? I suppose that the HLG transfer function is not applied by XnView MP.
Please here find some examples of photos (.HIF files):
https://drive.google.com/drive/folders/ ... tJTAbsHSMm
Thank you very much for your help

[Fafner]

I second this. Being able to correctly display HLG files would be great. I don't like Sony's program.