Alternatively, you can invoke any action by pressing Ctrl+Shift+A (Cmd+Shift+A on macOS) and typing in its name, meaning the suggested previously “Type Info”. It’s not as convenient as a shortcut, but should do in cases when there is no key binding for an action.
On the other hand, I encountered several cases when Type Info didn’t work for expressions. That might be a bug and should probably be reported as such.