Steve Puddick

Additional options and settings for embedding YouTube videos with the block editor:
<ul>
<li>Auto Play – Start playing the video as soon as the page loads</li>
<li>Hide Related Videos – At the end of the video there are normally recommended videos. This setting hides those.</li>
<li>Hide Video Controls – Hide the video controls</li>
<li>Disable Full Screen View – Disable full screen</li>
<li>Do not show video annotations by default – Normally video annotations display automatically. This setting hides those.</li>
<li>Loop Video – As soon as the video ends it starts playing again in an infinite loop</li>
<li>Minimal YouTube Branding – Hide the YouTube logo in the video player</li>
<li>Use Privacy Enhanced Mode – YouTube won’t automatically store information about visitors that visit the page the YouTube video is embedded on. Information will only be stored if the video is interacted with, such as played.</li>
<li>Display Closed Captions by Default</li>
<li>Interface Language – Set the interface language of the player with a 2 character language code</li>
<li>Default Closed Captions Language – Default closed caption language. Set with a 2 character language code</li>
<li>Video Start Time – Rather than start playing at the beginning, the video will start playing after the specified number of second</li>
<li>Video End Time – Rather than stop playing at the end of video, the video will stop playing at this many seconds into the video</li>
</ul>

Enhanced YouTube Embed

Additional options and settings for embedding YouTube videos with the block editor.

ikanaweb

Activate this plugin and reduce you page weight by nearly 1mo !
Because embed videos can dramatically increase your page weight and loading time, Embed Video Thumbnail 
automatically replace them by their corresponding thumbnail. Videos will then only be loaded after click on thumbnails.
This plugin fixes part of the following “defer parsing of javascript” error in GTmetrix :
<blockquote>
xxxx MiB of JavaScript is parsed during initial page load. Defer parsing JavaScript to reduce blocking of page rendering.
</blockquote>
Currently supported video hosting services :
<ul>
<li>Youtube</li>
<li>Vimeo</li>
<li>Dailymotion</li>
<li>Facebook</li>
</ul>
Optional settings :
<ul>
<li>Toggle activation on each hosting services</li>
<li>Toggle activation by device (desktop, tablet, mobile)</li>
<li>Copy thumbnail on local server for performance improvements</li>
<li>Display video title over the thumbnail</li>
<li>Toggle video loop on Vimeo and Youtube</li>
<li>Import/export settings</li>
</ul>
Widget :
You can use our Embed Video Thumbnail widget to transform your videos in sidebars.
Custom hosting services can be added with the <code>ikevt_extension_providers</code> hook. 
Each hosting service extension must implement <code>Ikana\EmbedVideoThumbnail\Provider\ProviderInterface</code>
Requirements :
<ul>
<li>php 5.6+</li>
</ul>

Embed Video Thumbnail

Automatically replace embed videos everywhere with their thumbnail to reduce page load time and improve your GTmetrix score.

Enhanced YouTube Embed vs Embed Video Thumbnail