ACF: get_field() returning false [closed]

You need to pass in the ID of the post you’re trying to get the field from: Eg

get_field('display_featured_image', $post_id). 

In a loop you could do

get_field('display_featured_image', get_the_id());

ACF Stores field data in wp’s meta_fields, so you could even use WP’s built in meta handler to pull the data yourself Eg:

get_post_meta( $post_id, 'acf_field_name', true); // Use true for almost every case, as WP will return an array otherwise.