Current stable release: 10.9.7
Matrix (General Information & Help)
Matrix (Off-Topic) - Come get to know the team and blow off steam!
Matrix Space - List of all the available rooms on Matrix.
Discord - Bridged to our Matrix rooms
You can download movies and shows right from the webUI, (as file downloads in the browser) but aside from that, there's not been much work on syncing stuff for offline play.
That's something only Plex ever thoroughly implemented, and before you consider setting it up for this purpose, it's apparently buggy as hell nowadays.
I've had some small luck with this feature on Emby. The download will, most likely, be just a file put somewhere specific, but Emby also has a Windows client that works like the webUI but can access and initiate/view downloaded content.
Same warning though, haven't tried and might well be garbo. Tread lightly, good luck!
Before I get on a plane (and when I’m too cheap to pay for the in-air wifi) I’ll download directly from Jellyfin onto my device before getting on the plane. VLC will play just about anything that you’ve got running on Jellyfin from there.
VLC (sort of)
You can download and then use VLC for playback
If you're desperate enough you could run findroid via BlueStacks.
BlueStacks is an android emulator