Yep. CLIs often also have a predictable interface. (Help is almost always -h or --help, version info is -v or --version, etc).
On a GUI you'll have to play around a bit more and search for functionality.
CLIs are not guaranteed to have a predictable interface at all. The flag prefix isn't standardized at all. On Windows you see the awkward / prefix. On Linux you will see a random mix between -- or - and the way values are specified is also random. Sometimes it is --flag value at other times it is --flag=value or just -f value or -f=value with no fully written out counterpart. If there was actually a standard that every CLI application followed (or the format was parsed by the shell instead and applications simply receive the parsed array of arguments) then you could make this argument. I would love it if this were true but that isn't the world we live in.
