How to Hide the Backstage Button in Winui Ribbon Control

You can show or hide the backstage button in WinUI Ribbon control by setting the ShowBackstageMenuButton property to true or false.

XAML:

<ribbon:sfribbon showbackstagemenubutton="False">
   <ribbon:sfribbon.tabs>
       <ribbon:ribbontab header="Home">
       <ribbon:ribbontab header="Insert">
       <ribbon:ribbontab header="View">
   </ribbon:ribbontab></ribbon:ribbontab></ribbon:ribbontab></ribbon:sfribbon.tabs>
   <ribbon:sfribbon.backstage>
       <ribbon:ribbonbackstage>
           <ribbon:backstageview>
       </ribbon:backstageview></ribbon:ribbonbackstage>
   </ribbon:sfribbon.backstage>
</ribbon:sfribbon>