Limit wordpress image sizes based on save data header

wp-limit-image-sizes.php

<?php

/**
 * Limit image srcset width
 * @link https://developer.wordpress.org/reference/hooks/max_srcset_image_width/
 */
function limit_image_srcset_width( $max_width = 2048, $size_array = [] ) {
  $saveData = (isset($_SERVER["HTTP_SAVE_DATA"]) && stristr($_SERVER["HTTP_SAVE_DATA"], "on") !== false) ? true : false;
  return $saveData ? 652 : $max_width;
}

add_filter( 'max_srcset_image_width', 'limit_image_srcset_width' );