How to get WebP Pageimage::url hook to affect got random FieldtypeImage files?

[hellomoto]

$wire->addHookAfter('Pageimage::url', function(HookEvent $event) {
  static $n = 0;
  $image = $event->object;
  if(++$n === 1 && in_array($image->ext, [ 'jpeg', 'jpg', 'png' ])) {
    $event->return = $image->webp()->url();
  }
  $n--;
});

[https://processwire.com/blog/posts/webp-images-on-an-existing-site/]

This works great unless shown by

$page->images->getRandom();

?

[hellomoto]

Or it's working I guess but just not for one image with jpg extension weird the webp is in the files folder for the page with it