The Featured Page is straightforward to set up.
Drag a Featured Post widget across to where you want it.
Choose your own options. Save.
A simple Featured Page is shown here in the sidebar
Does your Theme have Footers? You can display a Featured Page widget in the Footers
Before you start phoning me, there is no ‘Widget Page’ in your WordPress. Write your own. People often use the Footer widgets to display some important pages from their site example, Privacy Policy