Get unlimited posts on blog page despite of Settings > reading number #wordpress #blog #index

wordpress_index_unlimited_posts.php

/* ::::::::::::::::::::::::::::::::::::
* Unlimited posts (articles) on blog page
* :::::::::::::::::::::::::::::::::::::
*  Set the number of posts per page (post count) unlimited. Must be in functions.php  */

function modify_current_query_loop( $query ){

  //only if main query, you can also test with $query->is_tax('example-cpt-slug') or $query->is_archive() in the condition to be more accurate to your case
  if( $query->is_main_query() ):

      //set unlimited (-1) post count, pagination won't be displayed
    $query->set('posts_per_page', -1);

    // other modification settings :
    // $query->set('order', 'ASC');
    // ...
    // more settigns on https://developer.wordpress.org/reference/classes/wp_query/

  endif;
}

add_action('pre_get_posts', 'modify_current_query_loop');