[Theming Snippets] Change number of related products output

wc-change-number-of-related-products.php

/**
 * Change number of related products output
 */ 
function woo_related_products_limit() {
  global $product;
	
	$args['posts_per_page'] = 6;
	return $args;
}
add_filter( 'woocommerce_output_related_products_args', 'jk_related_products_args', 20 );
  function jk_related_products_args( $args ) {
	$args['posts_per_page'] = 4; // 4 related products
	$args['columns'] = 2; // arranged in 2 columns
	return $args;
}

This gist looks to have a function that's not used. You can't PR a gist, but I've forked this and amended to be inline with other gists you have. Tried and tested on my current project, to confirm: https://gist.github.com/eddhurst/d148b8a93c16acdeb8fd3865e5d8eb9f

How do you add && wp_is_mobile to the code?

Any chance we can get an example of an $arg['tax_query']?

Nothing I do seems to have an effect.