Featured Image on Pages

Hi,

I have been using the following code to only show the default featured image on the excerpt and not in the post itself, but I am also using the featured image on pages and wondered what I should add to this code or perhaps some different code to not show the default featured images on pages too?

‘function exclude_single_posts ( $dfi_id, $post_id ) {
// don’t trigger on individual posts
if( is_single() ) {
return 0; // invalid id means no image
}
return $dfi_id; // the original featured image id
}
add_filter( ‘dfi_thumbnail_id’, ‘exclude_single_posts’, 10, 2 );’

https://www.ads-software.com/plugins/default-featured-image/