Make the product category permalinks non hierarchical. So instead of `shop/clothing/t-shirt/` we'll see `shop/t-shirt/`

non-hierachical-category-permalinks.php

<?php
// make the categories non hierarchical for their permalinks
function my_woocommerce_taxonomy_args_product_cat( $args ) {
	$args['rewrite']['hierarchical'] = false;
	return $args;
}
add_filter( 'woocommerce_taxonomy_args_product_cat', 'my_woocommerce_taxonomy_args_product_cat' );

Is this a code that need to be added in functions.php ?

My goals:

1. When add new product it adds automaticly produkt (product) to the url - https://stanimirmihov.com/produkt/staven-kompleks-stavi-suhojiliq/ . Can I use instead category or tag every time instead this default line?
2. Same with categories, when I browse otslabvane (weight loss) I have automaticly added text to the URL - https://stanimirmihov.com/produkt-kategoriya/otslabvane/ , Can't I just use https://stanimirmihov.com/the name of the category ?
3. Same with the tags, when I browse tag otslabvane (weight loss) I have automaticly added text to the URL - https://stanimirmihov.com/produkt-etiketi/otslabvane

It would be much better If I can just use categories and sub categories only for the url and then the permalink from wordpress.

Produkt = Product ; Etiketi = Tags

Hey, does anyone know how to add a filter to include blog posts and pages? So that this setting works globally across wordpress?