Raycast and Paletro provide a better UI for this. Especially Paletro remembers your last choice so you don't have to search for commands over and over. Really helpful when working with mouse-heavy apps.

For other Raycast users who didn't know it could do this, use the "Search Menu Items" command.

Interesting but it doesn't seem to activate the menu item for me. Can I make the menu item be invoked once I found it? Hitting return does nothing.

Under Ventura 13.0.1 it works as expected for me. Shift + Command + /, down arrow to select result, hit return activates it.

It might depend on which key your question mark is on, if not using a US layout.

Whoa! Been a mac user since 1986 and never knew of this.

Ditto, but it doesn't work in 10.14.6, so it's probably a (very) recent addition.

Naw, it's been there since 10.0.0. Without a shortcut: use the text field in the "Help" menu.

It’s quite an old feature. Check whether you have disabled or changed the shortcut under System Preferences > Keyboard > Shortcuts > App Shortcuts > All Applications > Show Help Menu.

The default shortcut might also differ between keyboard layouts.

As the sibling comment said you can also use the text box in the Help menu by clicking it.