Exclude categories

I have found this snippet in WP support forums https://ww.wp.xz.cn/support/topic/1076-5000-deactivate-wpdiscuz-for-registered-members-or-for-selected-posts/

add_filter(‘is_load_wpdiscuz’, function ($isLoad, $post) {
if ($post->ID == X) {
return false;
}
return $isLoad;
}, 10,2);

I am not a developer, but since it is activated through is_load_wpdiscuz, maybe there is a way to change post ID to post category ID so WpDiscuz is excluded from all posts inside categories IDs