In addition to dual booting, you can create a persistent USB drive. It’s a little tedious, but kind of a cool way to give your setup a spin.
I think you need Rufus to format the drive, to set up the USB drive so it doesn’t refresh when you reboot. I’m sure there are speed implications, but I’ve actually found it snappy enough for basic stuff once it loads. It’s a cool way to try different distros. I have a handful lying around. I still preferred mint in the end.
Same. For whatever reason Jellyfin just does not want to work outside of my network. I have fiddled with port numbers, settings, and everything else. I have no idea why it won’t work.