The Tags component is a flexible and useful alternative to categories.
I ... recommend that you ... use categories, but there’s no denying that Tags will allow you to do things that categories will not.
Joomla allows you to assign only one category to a Joomla article. Tags don't have this limitation. You can also assign as many Joomla tags to a single article as you wish.
To keep Joomla tags displayed only on single article pages, you need to do the following.
Set them to be hidden for articles sitewide.
Set them to be displayed explicitly for the required articles.
Now open for editing a Joomla article on which you would like to display tags.
Repeat this step for all the required articles.
If you check your site now, you will see that it displays Joomla tags only on the pages of the articles, for which you explicitly set the Show Tags to Show.
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