How to change default product visibility in woocommerce

If you want to change default product visibility in woocommerce then add that following code in your functions.php file.
Here instead of “hidden” change your default visibility values.

function filter_woocommerce_product_visibility_default( $visible ) { 
    return "hidden"; 
	//return your default value here
}; 
add_filter( 'woocommerce_product_visibility_default', 'filter_woocommerce_product_visibility_default', 10, 1 );

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