Javier Carazo

<p>Sometimes you to restrict some products for a certain group of users. This plugin allows you to easily do it. In each product you will find a box to choose if you want to activate this functionality in this product. If yes, you will be able to fill a list of users which will be able to view and buy the product. The other ones, won’t see it in the lists and if they try to browse to the product, they will be redirected to home page.</p>
<h3><strong>Basics</strong></h3>
<ul>
<li>Set in every product if you want to activate this functionality</li>
<li>You can choose between two restriction modes: deny to see this product, or allow to see the product but not to purchase it</li>
<li>In both cases, you will have to fill a list of users in this product, the users in the list won’t suffer any restriction, all the others will suffer the restriction chosen</li>
<li>Administrators and shop managers always won’t be affected.</li>
</ul>
<h3><strong>Usage</strong></h3>
<p>Once the plugin is installed you can use it. Below Product data, you will find a box called “Users which can view and buy this product”. There you can activate/deactivate this functionality, choose the restriction mode and fill the list of the users which can see it.</p>


Products Restricted Users for WooCommerce

This plugin allows you to restrict the visibility for some products. You can enable the functionality in every product you want.

Alvaro Gómez

<p>This plugin restricts access for Authors and Contributors so they can only see their own Media Library uploads.</p>
<p>This has two main uses: Make it easier for Authors to locate their own uploads when Media Libraries grow very big and prevent Authors from using or downloading media that belongs to other users.</p>
<p>Admins and Editors will still be able to see everyone’s uploads.</p>


Restrict Media Library Access

Muy útil

This plugin works fine in WP 5.7.1 

It's just the example code from the official WP docs for the ajax_query_attachments_args filter, with a line added to check if the current user is an administrator. It's very simple.

There's no reason this plugin shouldn't work in an up-to-date WP installation

works in WP 5.7.1

Restricts access for Authors and Contributors so they can only see their own Media Library uploads.

Products Restricted Users for WooCommerce vs Restrict Media Library Access