The HidePost WordPress Plugin allows you to hide specific posts on your front and home page. The posts will stay visible in the category and archive pages.
Important: works in Version 0.1 only with the Classic Editor
The official HidePost WordPress Plugin can be found here: https://wordpress.org/plugins/hidepostwp/
You find in the release section of the GitHub repository (https://github.com/mc17uulm/HidePost/releases) the most recent releases. Download the newest one and upload it to your WordPress site (Plugins > Add New > Upload Plugin).
After activating the HidePost WordPres Plugin you will find a new metabox in your post editor. With a simple click on Hide Post on front page and saving your post, you can now select single posts to be hidden on your front and home page.