Could some of the instability issues you have on arch could come from what you are installing from AUR?

I use AUR for a few things and it is a great resource but the packages are maintained by users and can cause issues.

I update those packages carefully, remove them if I am no longer using them and reconsider which ones i actually need installed in the first place.

While doing this I have only had a handful of issues pop up while updating and usually there is a recent thread describing the issue and how to fix it after a quick search.

Have you considered macvtap? if you can work around the limitation of not accessing the guest directly from the host it will likely be an easier choice for setting up access to your jellyfinserver.

You did explain what they are trying to do but didn’t explain why, which could help with suggestions on how to achieve what you are looking for in your setup.

ssh -v can be help troubleshoot connection issues. Any firewalls involved on either end?