Updating the Menu
If your theme supports custom menus, you can make modifications to them from the Menus option. Menus can contain links to Pages, Posts, Categories, Custom Links or other content types.
Unfortunately, if you’re using a theme that's built specifically for the Full Site Editor (FSE), such as the new Twenty Twenty-Two or Twenty Twenty-Three default themes, you’ll no longer have access to the Appearance > Menus option in the Dashboard. The only way to create a new navigation menu or edit an existing menu, will be by using the Navigation Block within the Full Site Editor (FSE). You can access the Full Site Editor using the Appearance > Editor menu option. This option will only be available if your theme is specifically built to make use of the Full Site Editor.