I’ve personally seen a couple of these types of emails over the past few weeks.
More or less the gist of these emails is that they hacked your account months ago and have recorded all your passwords and saved your contacts. and sent you this email FROM your hacked account.
FIRST clue… as a programmer I can send an email and make it appear as anyone and any email I want! So anything coming in from email should never be trusted anyway!
They usually also say they’ve recorded you watching porn or other questionable material. Using a screenshot and your web cam, and
SECOND clue… you would notice the extra bandwidth required to mirror your desktop AND a webcam at the same time! When I do remote support I remove the background image as the video would just be too slow to work with.
In summary… this is a complete scam… simply delete it and move on!