Do ETNs use derivatives?

Excuse me, I'm curious about something regarding Exchange Traded Notes, or ETNs. Can you please clarify if ETNs utilize derivatives in their operations? I've heard differing opinions on this matter, and I'd like to get a definitive answer from someone knowledgeable in the field. Understanding the underlying mechanics of these financial instruments is crucial for me to make informed investment decisions. Thank you in advance for your time and expertise.