I should look into Jellyfin myself. I really need to introduce myself to containers. It’s something I should familiarize myself with as a Linux user, but I just barely got done learning the basics of WINE prefixes.

There’s not much that combines these two apps together like this, but there are separate alternatives. Nova Player for hosted media (I use Plex on my Raspberry Pi), Antennapod is one of many many podcast forks (most open source podcast apps use the same layout).

For listening to android localized audio books, I absolutely love Voice. Voice does have chapters built in as long as your audio books have them. You can pick up Voice and Nova Player for free on F-Droid if you want to try them out. Plex and Pi are a little more involved.