Blair Williams

<p>Members – Role Hierarchy is an add-on plugin for the <a href="https://wordpress.org/plugins/members" rel="ugc">Members plugin</a>, which adds a hierarchical role system.</p>
<p>Hierarchical roles are important when you want to allow “lower” level users, such as Editors, to create, edit, promote, or delete users without giving them access to a higher role, such as Administrator.</p>
<p>For more info, visit the <a href="http://themehybrid.com/plugins/members-role-hierarchy" rel="nofollow ugc">plugin home page</a>.</p>
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<h3>Professional Support</h3>
<p>If you need professional plugin support from me, the plugin author, you can access the support forums at <a href="http://themehybrid.com/board/topics" rel="nofollow ugc">Theme Hybrid</a>, which is a professional WordPress help/support site where I handle support for all my plugins and themes for a community of 60,000+ users (and growing).</p>
<h3>Plugin Development</h3>
<p>If you’re a theme author, plugin author, or just a code hobbyist, you can follow the development of this plugin on it’s <a href="https://github.com/justintadlock/members" rel="nofollow ugc">GitHub repository</a>.</p>


Members – Role Hiearchy

Add-on plugin for Members for hierarchical user roles.

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.

Members – Role Hiearchy vs Restrict Media Library Access