SOLVED: Jellyfin has washed out colors (Violet Evergarden)

[voltangle]

I have tested these approaches:
- Jellyfin Web UI in Arc (Chromium 127)
- Latest (current) JMP
- Swiftfin (iOS)
- Jellyfin (iOS)
- Jellyfin (Android)
- IINA over Jellyfin (URL stream)
- VLC over Jellyfin (URL stream)
- IINA over SMB (opened file in a network share)

And only the IINA over SMB (FYI: IINA is a macOS player based on mpv, https://github.com/iina/iina) gave me the correct colors. Screenshots for comparison are in attachments (one of the screenshots showcases how I manually altered the video in IINA to look like all other solutions).

   
IINA over SMB

   
JMP

   
IINA over SMB with altered settings to mimic how it looks in JMP (cranked up brightness)

Is this a bug? or am I just stoopid and I misconfigured something?

   
Media info from Jellyfin