I am leaving a lot of stuff out because there’s way too much to paste here, but you get the idea.
<?php
$author = 85; //get_query_var('author');
$images_query = new WP_Query([
'suppress_filters' => FALSE,
'posts_per_page' => -1,
'post_type' => 'images',
'meta_query' => [
//'relation' => 'OR',
//'relation' => 'AND',
[
'key' => 'authors_%_people',
'compare' => 'LIKE',
'value' => '"'.$author.'"',
],
],
]);
?>
<div class="row grid">
<?php
if( $images_query->have_posts() ) :
while( $images_query->have_posts() ) :
$images_query->the_post();
?>
<div id="<? the_ID() ?>" class="grid-item">
<?= wp_get_attachment_image( get_field('image')['ID'] ?>
</div>
<?php
endwhile;
endif;
wp_reset_query()
?>
</div>
