Wouldn’t trust the EU with my data especially with the increasing popularity of laws like chat control and the rise of far left fascist governments who want to censor and control everyone.

If you set up ipv6 on the jellyfin server, you’ll be connected locally to your server because with ipv6 even if you use a domain name, if the server is in your lan it’ll connect locally to it.

Which orange ? I’m with orange Belgium.

As a beginner myself I would recommend you installing portainer (a gui for docker) and if you need compose files I have them for all of my services on my GitHub.