Dictation in Adobe Bridge?

mikea96950696  wrote I ask because under Edit, at the bottom of the list is Start Dictation.

The Start Dictation command there has nothing to do with Bridge. It's a system command linked to the macOS Dictation feature. You will see that Start Dictation command in any application that uses standard macOS menus, even if the application can't do anything with it. For example, Start Dictation is on the Edit menu in Apple Disk Utility.

Edit: After reading the document I linked to, it looks like one reason Start Dictation appears in just about every Mac application is that you can use Dictation Commands to operate an application by voice. This looks especially useful for those who need to use it as an Accessibility feature. So if you had limited use of your hands you could still play a slide show or format a new drive, by speaking.