You can deactivate a language pack in the extension manager. That's what this refers to. It coulöd be installed but not activated.
So a more correct term would maybe be "Activated Site Languages"?

Thanks for explaining. As the extension manager enables and disables I will submit a pr to change it to "Enabled....

Closed as having Pull Request #25584

You can deactivate a language pack in the extension manager. That's what this refers to. It could be installed but not activated.

I think we have a bug here. In fact when you disable a language in Extensions Manager, the language does not display at all.
Code is $status->element for both the Language tag and the "Published Site Languages "
That is a bug...

code is

	/**
	 * Method to return combined language status.
	 *
	 * @return  array of language objects.
	 */
	public static function getStatus()
	{
		// Check for combined status.
		$db = Factory::getDbo();
		$query = $db->getQuery(true);

		// Select all fields from the languages table.
		$query->select('a.*', 'l.home')
			->select('a.published AS published')
			->select('a.lang_code AS lang_code')
			->from('#__languages AS a');

		// Select the language home pages.
		$query->select('l.home AS home')
			->select('l.language AS home_language')
			->join('LEFT', '#__menu AS l ON l.language = a.lang_code AND l.home=1 AND l.published=1 AND l.language <> \'*\'')
			->select('e.enabled AS enabled')
			->select('e.element AS element')
			->join('LEFT', '#__extensions  AS e ON e.element = a.lang_code')
			->where('e.client_id = 0')
			->where('e.enabled = 1')
			->where('e.state = 0');

		$db->setQuery($query);

		return $db->loadObjectList();
	}

When I tested disabling a site language in the extension manager the module displayed the language with the expected icons and messages

If you disable French site for example, you get (with your PR but would also be the same before your PR):

This is wrong:
We should get fr-FR and then a X

We have a bug here. Looking at it now.

We should get this

No problem for me

GRRR... forget it. I had some cache on... Sorry

lol