Use Font Awesome icons from your own host/server. Update the latest releases from GitHub.
Choose the major version and install the latest minor version. For example: Choose major version 6, and install the latest of 6.x.xx. 
Currently supported for version 4, 5, 6, 7.
This plugin did not use CDN (content delivery network). If you want to use CDN, please use official Font Awesome plugin instead.
You can dequeue duplicated Font Awesome handles from other plugins or themes to prevent conflict.
You can disable enqueue from this plugin in case you would like to do it manually. 
To get asset files for manually enqueue, use this code.
<pre>
if (function_exists('rdfontawesome_get_enqueue_files')) {
 $result = rdfontawesome_get_enqueue_files();
 if (isset($result['css']) && is_array($result['css'])) {
 $faVersion = ($result['faVersion'] ?? false);
 $i = 1;
 foreach ($result['css'] as $css) {
 wp_enqueue_style('myplugin_fontawesome_' . $i, $css, [], $faVersion);
 ++$i;
 }
 unset($css, $faVersion, $i);
 }
}
</pre>
To get URL base of the Font Awesome assets for use another files, use this code.
<pre>
if (function_exists('rdfontawesome_get_public_url_base')) {
 echo rdfontawesome_get_public_url_base();
}
</pre>
Tested up to PHP 8.5.
Font Awesome files are belong to https://fontawesome.com

Rundiz Font Awesome

Use Font Awesome from your host and update from GitHub.

Zayed Baloch

Hammal Albulushi

Naeem Noor

This plugin allows you to easily embed Font Awesome icon to your website using HTML or built-in shortcode handlers.
<h4>Features</h4>
<ol>
<li>Shortcode support. Example: For Font Awesome 5 <code>[wpfa5s icon=""]</code>, <code>[wpfa5r icon=""]</code>, <code>[wpfab icon=""]</code>, and for Font Awesome 4.7+ <code>[wpfa icon=""]</code></li>
<li>Use Larger Icon: <code>[wpfa icon="" size="2x"]</code>. Sizes: <code>xs</code>, <code>sm</code>, <code>lg</code>, <code>2x</code>, <code>3x</code>, <code>5x</code>, <code>7x</code>, <code>10x</code></li>
<li>Add Font Awesome icon in Menu with shortcode.</li>
<li>Support shortocde in Widgets.</li>
<li>Support post and page title.</li>
<li>Font Awesome version 6</li>
<li>Support Font Awesome version 5.+ and 4.7.0</li>
<li>Add Font Awesome icon from editor Toolbar button.</li>
</ol>
<h4>Shortcodes</h4>
Introduced three new shortcode for Font Awesome support.
Font Awesome v6 & v5 
 [wpfa5s icon=”home”] for Solid style. 
 [wpfa5r icon=”user”] for Regular style. support only in few icon. 
 [wpfa5b icon=”wordpress”] for Brands.
Font Awesome 4.7+ 
 [wpfa icon=””].
<h4>Note</h4>
The <code>fa</code> prefix has been deprecated in version 5. The new default is the <code>fas</code> solid style <code>far</code> regular style and the <code>fab</code> style for brands.
WP Font Awesome plugin still support Font Awesome version 4

WP Font Awesome

Nice and easy

This plugin allows you to easily embed Font Awesome icon to your site with simple shortcodes.

Rundiz Font Awesome vs WP Font Awesome