Haris

Astahub

A plugin that gather many minor admin-side customization that often needed for a WordPress project. If you guys have some ideas to include, please let me know by mention it on the comment section.
Functions that included are :
<ul>
<li>Disallow plugins and themes to install, edit and update. Also just allowed core minor (bug-fix) update and disable the major</li>
<li>Disable comments</li>
<li>Disable posts</li>
<li>Disable default dashboard</li>
<li>Rename admin footer texts</li>
<li>Custom admin welcome dashboard</li>
<li>Hide WordPress drop-down menu on admin header</li>
<li>Hide Tools, Plugins, Themes and Theme Editor from admin menu</li>
<li>Customize login logo</li>
</ul>
Usage Instruction :
<ol>
<li>Install the plugin</li>
<li>Open the settings page on Settings -> Project Essentials</li>
<li>Change the plugin options then save it</li>
</ol>

WP Project Essentials

An essential plugin for WordPress project.

Santi

This lightweight plugin removes the “Posts” and “Comments” sections from the WordPress admin menu, disables commenting functionality across the site, and can disable the Gutenberg editor site-wide.
Ideal for sites that only use Pages or custom post types and want to simplify the admin interface.
Features: 
* Removes “Posts” and “Comments” from the admin menu 
* Disables comments and pingbacks across the entire site 
* Disables the Gutenberg block editor and restores the classic editor 
* Removes the comments admin bar link and related widgets 
* Cleans up the editing screens by removing comment options 
* Allows SVG and ICO uploads to the Media Library

Santi Tech Disable Posts & Comments

Removes "Posts" and "Comments" from the WordPress admin, disables comments site-wide, and can disable the Gutenberg editor.

WP Project Essentials vs Santi Tech Disable Posts & Comments