Static news page has for thumbnail the featured image of the first posts

Question

So I have a static page for the news page in wordpress, and its featured image as a breadcrumb image. I query it with this: <?php the_post_thumbnail_url(get_option('page_for_posts')); ?>. The problem is this function for whatever reason outputs the featured image of the first post instead of the featured image for the posts page.

My entire home.php looks like this (with irrelevant html code cut out)

<?php get_header(); ?>

<?php the_post_thumbnail_url(get_option('page_for_posts')); ?>

<?php
  if ( have_posts() ) : while ( have_posts() ) : the_post();
?>

<!-- code for the posts -->

<?php
  endwhile; endif;
?>

<?php get_footer(); ?>

Answer 1

the_post_thumnbail() doesn't accept an arbitrary post id as an argument. It just takes a size to display. To get the post thumbnail URL of a given post, you need to use get_the_post_thimbnail_url():

<?php echo get_the_post_thumbnail_url( get_option( 'page_for_posts' ), 'full' ); ?>