Show a custom field added with Gutentor or with ACF plugin in a post (meta)

Hello Gutentor and members,

Does someone knows how i can show a custom field added with Gutentor or added with ACF plugin in a post. Especially to show in the post primary meta as a extra field? The goal is to show a post counter view number provided by the plugin Post Views Counter.

In which Gutentor template PHP or theme template PHP file do i have to add at which line and which exact code? Is this possible?

Something like this i presume:
<p><?php the_field(‘field_name’); ?></p>

The page I need help with: [log in to see the link]