Got the same problem with Jellyfin. I'm on Build 2024052100 on Pixel 6a.
After 5-10 minutes the app stops playing audio.
Developer Options are off.
"Background Usage" is activated in apps battery settings.
"Unrestricted Data Usage" option is activated in "Mobile Data Usage" Settings.
"Mobile Data usage in background" option is activated in "Mobile Data Usage" settings.
Usually im on wifi when this happens.