Remove "Category:" from title

function.php

function prefix_category_title( $title ) {
	if ( is_category() ) {
		$title = single_cat_title( '', false );
	} elseif(is_product_category()) {
		$term = get_queried_object();
		$title = $term->name;
	}
	return $title;
}
add_filter( 'get_the_archive_title', 'prefix_category_title' );