Exclude category from loop

The generatepress related posts that appear under posts; I think it's sorted by recency.

Can you raise a new topic where you can share a link to your site and ill take a look at whats required.

Done
https://generatepress.com/forums/topic/exclude-category-or-specific-posts-from-related-posts/

I created a new Hook called Hide Uncategorized Posts in Blogroll. Uncategorized category ID=1. It has the following code:

<?php
add_filter('pre_get_posts', 'excludeCat');
function excludeCat($query) {
      if ( $query->is_home ) {
            $query->set('cat', '-1');
      }
      return $query;
}
?>

The hook is set to generate_before_header and Execute PHP is checked. The location is set to Blog.

I have a blog called Summer Camps Dublin OH that has the Uncategorized category in it, and it still shows in the Blogroll. Any ideas what I'm missing?

https://www.classroomantics.com/blog/

That code should be added using one of these methods:
Adding PHP: https://docs.generatepress.com/article/adding-php/

And can you make sure Uncategorized has ID of 1?

Thanks Leo. I reconfirmed the ID was in fact 1. I downloaded and used Code Snippet for the PHP and it worked. I appreciate your help!

No problem :)