Function to Disable for ‘Posts’

I am using this plugin for one of our custom post types, it’s a daily reading we have for our users. But, I don’t want this plugin enabled for our blog posts. I’ve been on a few websites all using this function:

add_filter( 'comments_template' , 'wpb_block_disqus', 1 );
function wpb_block_disqus($file) {
if ( 'post' == get_post_type() )
remove_filter('comments_template', 'dsq_comments_template');
return $file;
 
}

But it doesn’t seem to work any more? Any idea how we can achieve this?

Thank you!