I’ve poked around online and it seems like Jellyfin had (music) volume normalization added to it sometime recently. However, I’m struggling to verify that it’s enabled/working. Is it something I have to enable or is it on by default? If it’s on shouldn’t I be able to see something like a LUFS or ReplyGain value in each song’s metadata?

UPDATE: I’m not familiar with Jellyfin’s git strategy, but it seems like even though the audio normalization has made it into the master branch it has NOT made it into the 10.8.z release tag/branch. I determined this by looking for the changes in Emby.Server.Implementations/Data/SqliteItemRepository.cs from the normalization PR in the current version of the file in 10.8.z and they were not present.