Flexslider not showing in wordpress 5.5

[pixelicous]

Hi,
Not sure if really an issue, woocommerce uses flexslider but i do not see how to enable it for product gallery thumbnails.
Should it be on by default instead of seeing a huge grid, both on mobile and desktop.
my functions.php include add_theme_support( 'wc-product-gallery-slider' );

Using hello elementor theme, really basic without any wordpress plugins.