Completely hide Posts with a specific category from logged out users

https://nl.www.ads-software.com/plugins/wp-members/

this plugin does not hide the category, neither hides it the post completely. It only displays a “please login” text instead of the posts content. The post and the headline is still displayed. I am searching for a plugin, that COMPLETELY hides the entire category and every post assigned to it. This means, nothing is displayed when clicking on the category.
Why isn’t this possible with pre_get_posts?

Template top section on add code if user logged display other wise redirect homepage.

1) Create template for listing.
category-slug.php
category-ID.php

2) Create single file for category post

https://www.ads-software.com/support/topic/using-a-different-template-for-posts-within-a-specific-category?replies=7

I just wanted to add this: if you do create a category template like that, please create and activate a child theme first.

https://codex.www.ads-software.com/Child_Themes

If you don’t and your theme is updated then you will lose your custom templates. But if you create and activate a child theme and put your custom templates in the child theme directory then your work will be safe.

Thanks for your answers ??
Why is there still no plugin for this? I don’t want to write a complete new childtheme, I only want to use a simple plugin, in case of need i will code it on my own.

Why has nobody found a solution for this? Is it a limitation in the WP API? Is it too much overhead? Can somebody explain that from a developer perspective? Thanks guys! ??