So that first page doesn't actually have the shortcut, it has a link to another page that contains the shortcut.

Secondly, it doesn't have the details on capturing without a shadow in an easy to read format.

Apple has only recently created the fancy screenshot utility. It used to only be 3-5 shortcuts for screenshots since I switched to Macs about 15 years ago.

Sweet irony:

"Apple's UI is not discoverable or even obvious."

"Just use Apple's biggest competitor to find them!"