Background of the issue:
I'm trying to add the language switcher (as flag only) to the primary-menu on my child-theme of TwentyTwentyThree. Settings are in FSE. When I go to Appearance > Edition > Navigation, I can see the language switcher as text in the right side preview zone.
Symptoms:
The end-user doesn’t see the language switcher at all. In the console, there’s nothing in the code.
Questions:
Why doesn't the language switcher appear for the end-user?
Is there a specific step I am missing in the FSE settings to display the language switcher?