SOLVED: AMD GPU Tone mapping issue

[arrguy]

You were right - removing drivers by amdgpu-install --uninstall, removing amdgpu-install completely, cleaning up with apt autoremove and restarting helped (had to restart whole server due to AMD bug where it cannot wake up card again, but it's not Jellyfin related)

Now transcoding with tone mapping works as intended

So simple fix, and I thought those drivers are necessary

Thank you