ACF - Show product by Brand and Product_cat Taxonomy

front-page.php

<?php 
if( have_rows($brand_slug) ): 
	$i = 1;
	while( have_rows($brand_slug) ):
		the_row();
		$cat = $brand_slug . '-cat';
		$term = get_sub_field($cat);
		?>
    
		<div class="tab-products">
			<?php 
			$args = array(
				'tax_query' => array(
					'relation' => 'AND',
					array(
						'taxonomy' => 'product_brand',
						'field' => 'slug',
						'terms' => $brand_slug
					),
					array(
						'taxonomy' => 'product_cat',
						'field' => 'slug',
						'terms' => $term->slug
					),
				),
				'post_type' => 'product',
				'posts_per_page' => 6
			);
			$the_query = new WP_Query( $args );
			?>

			<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>

				<?php get_template_part( 'template-parts/featured', 'product' ); ?>

			<?php endwhile; wp_reset_postdata(); ?>
      
		</div>

		<?php 
	endwhile; 
endif;