Found this in KDE’s Discover (software center)
SSH Pilot - it’s a GUI for SSH and adds a few goodies.
It has the standard ssh in a terminal which is the initial view. Works with ~.ssh file and you can generate and use existing keys.
Then you can right click on the connection in the sidebar and choose Dashboard or Manage Files.
Dashboard is similar to Cockpit’s Overview, Storage, Network pages and shows plenty of metrics.
Manage Files is a twin pane file manager with local on the left and remote on the right.
https://github.com/mfat/sshpilot
I don’t really do much with Cockpit aside from look at metrics. I’ve been using KDE’s Krusader file manager which has SFTP/SSH and is twin pane. And then SSH via terminal. This little app can do all three in three tabs.
If you have the Gnome desktop, it will look native as it uses some of the same libraries. Gtk4 etc