Some background. I set up a Jellyfin server for my family to host TV shows and movies for them for free. I finally had enough of Xfinity and switched to T-Mobile 5G home internet, but in doing so, I lost the ability to control my network's port forwarding. I'm spending literally half the previous amount on internet and getting the same speeds, so I don't plan on going back.
What I do plan on doing is setting up a new server at my parent's house and running it on their network. Problem is that I'm 2 hours away. My plan is to use Qbit, jackett, and the arrs to automatically download torrents. Is there any way to automatically rename torrents to match Jellyfin's naming convention for organization and metadata downloads?
You have some options here. Your new internet doesn't mean you can't torrent from home. If you're using a VPN (you really should be) then your ISP port forwarding doesn't even matter. You just choose a VPN provider that offers port forwarding on their end, like Proton, and use that port for qbit. The only real advantage to setting up at your parent's place would be if their connection was faster or more stable.
As for the server, the arrs can handle everything. They have settings (off by default) to rename and tag all of your files, based on rules you define. It's pretty easy to set it up to fully automate all of that processing busywork, so you just request things and wait for them to show up in Jellyfin.