I wish the jellyfin android tv APK supported dolby vision. I use Kodi with the jellyfin plugin and this is great as it allows for 4k DV with Atmos on an Nvidia shield with jellyfin quarterbacking the whole thing. It also seems to work better than my previous shared library via MySQL as it will force an automatic library update on all devices with new content and sync watched state.
My server is headless only has an embedded graphics card so I wish I could disable transcoding outright as I can never get it to play high def content via a browser despite trying different settings (debian).