It’s not you. There are many things you simply cannot do in the settings app.

Slackware. Installed from 3.5" floppy disk.

Oh really?

Do ssh-copy-id next please.

This will be a nice improvement for me.

I was honestly excited about the new Settings when Windows 10 arrived. I was a Windows sysadmin for more than a decade and am intimately familiar with control panel and think it sucks. I hoped Settings would modernize and streamline. But here we are, so many years later, and many common tasks still lead us to control panel. Such disappointment.