This is weird answering my own question. After researching and collaborating with teammates, we installed a plug in called "Design and Layout for JIRA Service Desk" which allows you to write a very short code using HTML.
<div style="position:relative;height:0;padding-bottom:56.25%"><iframe src="(YOUR LINK GOES HERE)" width="500" height="500" frameborder="0" style="position:absolute;width:100%;height:100%;left:0" allowfullscreen></iframe></div>
Note: If you need to resize the video, toggle with height and width options.
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