ThePilot

<p>This plugin will create categories for pages only, different from the categories assigned to posts. It will also list these page-only categories on the WordPress Dashboard, so you can sort pages by category on the dashboard.</p>


Create Categories For Pages Only

This plugin will create categories for pages only, different from the categories assigned to posts.

iziwebavenir

<p>Exclude categories, tags, posts or pages from your homepage (without breaking pagination)</p>


Name: WP Exclude From Homepage

works on 4.9

Great plugin. 
Stills works like a charme in WordPress 5.9.2

Works in WP 5.9.2

Exclude categories, tags, posts or pages from your homepage (without breaking pagination)

Create Categories For Pages Only vs Name: WP Exclude From Homepage