How to Display Category Post Count in nav menu?

Hi, hitbahsan, I am not sure entirely what the code is for your navigation menu, but I would say if you wanted the count of a category, then I would say look at this example code, which will give you the count for a particular category:

$category = get_category($id);
$count = $category->category_count;

, where the ID is the category ID and you can get the category ID by following this tutorial: https://www.wpwhitesecurity.com/find-wordpress-category-id/

and here is the developer reference page for the function so that you can glean more information:
https://developer.www.ads-software.com/reference/functions/get_category/

Thanks, Its worked.