Do folks managing servers mainly do so via command-line interfaces?

Or is that more of a stereotype, and there are some (maybe more?) out there using some form of graphical interfaces/web dashboards/etc.?

It's struck me as interesting how when you look up info about managing servers that they primarily go through command-line interfaces/terminals/etc. It's made me wonder how much of that's preference and how much of it's an absence of graphical interfaces.