I’d be very careful to publicly host Jellyfin. Although not necessarily true, it basically advertises that you’re pirating content while also giving out your IP. Even if you rip your own media, this can still be illegal. Please be careful.
Maybe you can put it behind some authentication or, even better, a VPN.
You most likely won’t utilize these speeds in a home lab, but I understand why you want them. I do too. I settled for 2.5GBit because that was a sweet spot in terms of speed, cost and power draw. In total, I idle at about 60W for following systems: