On the main control panel, edit the Quick Icons module by selecting the Show Items with Count value for the Languages Icon.
Having 2 languages on the site (together with English), we see one less on the main page. If we remove "our" language, the main page will still show one. If we set 2 or more languages, the main page will again show one.
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                The count is not a count of languages installed on the site
The count is a count of the content languages on the site
 
                The count is a count of the content languages on the site
To be more precise: Published content languages.
@Kostelano Please check and report back if the number is shown correctly when you have more than 1 content language published. Thanks in advance.
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                The count is a count of the content languages on the site
To be more precise: Published content languages.
ofc - should have used more precise language
@Kostelano Please check and report back if the number is shown correctly when you have more than 1 content language published. Thanks in advance.
that's how I concluded it was for content languages ;')
 
                Yes, these are content languages.
But, one way or another, something needs to be fixed. For example, a link that should lead to content languages, and not to install languages.
 
                yes the link is wrong
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| Status | New | ⇒ | Closed | 
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2023-05-28 07:19:29 | 
| Closed_By | ⇒ | alikon | 
The model displays "published" languages. But we will always have the default language 1..?
By analogy with other icons - there we also display only published elements.
Then it makes no sense for the language parameter to display a quantity, it should just be a link to the installed languages (similar to media, styles / templates, smart search, etc). Or the number of installed languages, which will be different from the logic of other icons.
joomla-cms/administrator/components/com_languages/src/Controller/LanguagesController.php
Lines 51 to 67 in c3593e9