How to hide a block if it has no tags?

Question

WordPress

Tell me how to hide the sidar if it is empty.
that is, the product filter is displayed only in the category where the product is displayed,
and in the card and in the parent category (products are displayed only in subcategories), an empty block.
According to the markup goes ^

<aside>
<section>
</section>
</aside>

If there is a filter, and so empty aside.
Through :empty, CSS, does not disappear, does not work

Answer 1

https://wp-kama.ru/function/is_active_sidebar
Or use WP's great many conditional functions instead to display the sitebar only where needed