Reading through your post, I can understand the concern you're feeling about the potential sextortion situation. It's definitely alarming to receive such threatening emails. Your instincts to seek advice and clarification are spot on.
As for the authenticity of the threat, it's always wise to conduct a thorough
digital investigation. This could involve checking the credibility of the sender, scrutinizing the content of the email, and perhaps even consulting with cyber security experts if needed.
In my opinion, it's crucial not to panic and to approach this situation with a level head. Often, these types of threats rely more on intimidation tactics than actual substance. However, it's still essential to take precautions and safeguard your digital privacy.