There are some compromises in the middle somewhere. I'm liking Apple Shortcuts when it fits the problem domain I am within.
And on Unix, there's always the man command. Also, most commands will repond to "command -h" or "command --help", but yes, it's a far cry from the Cisco router command line.
manpages aren't always that great. Unless they are on a BSD derivative...
PowerShell had some good ideas about making commands discoverable but the nuances and implementation really killed it for me.
I do get mad tho when a program doesn't have a manpage.
That's a feature, not a bug.
If you find yourself often needing a specific arcane sequence, then wrap it up in a command (shell alias, function or script) so that you don't have to always have to type `-r -v --bad-copy -c -m`.
If you find yourself always needing a different set of arcane flags, then wrap it in a wish script or similar (I've made a pomodoro alarm that generates notifications using nothing but zenity).
With GUIs, OTOH, if you find yourself forgetting down which rabiit-hole-menu an option lives in, you're simply out of luck.
Why not write your own wrapper programs? I wish I could modify GUI menus that easily.