Rich Tape

<p>Need to show a content block to only your site’s authors? Or maybe just to admins only? The User Roles add-on for <a href="https://wordpress.org/plugins/content-visibility/" rel="ugc">Content Visbility</a> allows you to do just that!</p>
<p>Every block on your site (including widgets) can be shown or hidden to users who have any role (or roles).</p>
<h3>Custom Roles</h3>
<p>This add-on supports any custom role that your theme or plugins have registered, as well as the native WordPress roles.</p>
<h3>Development</h3>
<p>Development is mostly done on <a href="https://github.com/richardtape/content-visibility-user-role/issues/new" rel="nofollow ugc">github</a> and releases are made there and here to the WordPress plugins directory.</p>


Content Visibility User Role

A user roles add-on for Content Visibility.

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.

Content Visibility User Role vs Restrict Media Library Access