Is there any way to enable the Appearance->Menus in the admin dashboard while FSE theme is enabled
I noticed that in some FSE themes the classic Menus admin page shows up under Appearance:
when they include a register_nav_menus( ... ) call within the after_setup_theme hook to define the relevant classic menu locations.
See for example the Raft theme’s setup:
https://themes.trac.wordpress.org/browser/raft/1.0.3/inc/Core.php#L87
It’s also possible to select classic menus within the Navigation block:
We note that the “Manage menus” link in the Navigation block is
/wp-admin/edit.php?post_type=wp_navigation
and it is not pointing the classic Menus admin page:
/wp-admin/nav-menus.php