When you’re editing the post, go to Post Options > Featured Image and select to hide the featured image. This specific setting should only be applied to the single post page.
Select how you’d like the featured image to show at the top of the post. This does not apply to when this post is listed in a post list or post grid. This option only refers to this single post.
Now, this is not the case for the next option called “Featured Image Link” —
Here you can select how you’d like this post’s featured image to react when clicked. This does apply to both this single post page and when this post is used in a post list or post grid.