How to change the number of visible posts of a new post type in the WP admin?

Question

WordPress

Created fields in Redux for new post types "Reviews" and "News", which display the number of posts displayed on the archive pages of these posts. For "Reviews" in Redux, I chose to display 4 posts, for "News" - 2.
I wrote the code for this in functions.php.

function legal_advisory_posts_per_archivepage($query){
  global $legal_advisory;
  $posts_per_page_testy = -1;
  $posts_per_page_news = -1;

  if($legal_advisory['testimonial_posts']){$posts_per_page_testy = $legal_advisory['testimonial_posts'];} 
  if($legal_advisory['newspostsperpage']){$posts_per_page_news = $legal_advisory['newspostsperpage'];}
  if(is_post_type_archive('testimonial')){
    $query->set('posts_per_page', $posts_per_page_testy);
  }
  if(is_post_type_archive('news')){
    $query->set('posts_per_page', $posts_per_page_news);
  }
}
add_action('pre_get_posts','legal_advisory_posts_per_archivepage');

Now everything works as expected, on the archive page "Reviews" - shows 4 entries and on the "News" page - 2 entries.
There was a problem that now the same number of records are displayed in the visible ones in the admin panel.
That is 4 entries for "reviews". And it is necessary that all records were shown.

And 2 entries for "News", but we also need all the entries in the admin panel.

What needs to be added in the code so that it does not affect the admin panel and all the entries are shown in the admin panel itself?

Answer 1

Wrap it up like this

if (!is_admin() && $query->is_main_query()) {

}