I use Cockpit to manage an Ubuntu Server LTS system that serves as a NAS (ie, Samba server) as well as a media server (Plex, Sonaar) and a few other things.
I don't tax Cockpit very much, it allows me to view the system status and manage basic performance, software updates, and systemd services. It's offloaded most of the things I'd usually do by ssh. As a bookmark on my desktop's browser it makes management very accessible. I do trust manually doing `apt` rather than its own package management, which sometimes freeze when the system is fine.
I can't speak for other solutions that may be newer or flashier because Cockpit has been good enough, and it's in the Ubuntu repository so Cockpit itself is easy to install and set up.