Minisforum UN100L, Realtek 1 Gbps Port, 1 Gbps symmetrical from ISP.
Fresh install Proxmox 8.2, add no subscription repo, updates at ~300 kB/s.
Installed and ran speedtest-cli, shows expected speeds 800+ Mbps.
Fresh install Ubuntu 24.04, updates at expected speeds ~120 MB/s.
Trying to...