Infuse is a great app for iOS iPadOS and TvOS which previously only support Plex.
The release version of 6.4 just added Emby and Jellyfin support.
Here is a simple tutorial showing how to add Jellyfin to infuse:
1, Open your infuse and click add files .
2, Choose "Media servers" -> Add Media Servers -> Other Jellyfin .
3, Fill with information to access to Jellyfin server
Address: [The Jellyfin local address or remote address (DDNS will allow you to watch outside from home)]
Username: [user name ]
Password: [Jellyfin password]
Click Advanced:: -> Port: (Default is 8096)