Interactive product demos and product education libraries both help people understand software, but they solve different parts of the customer journey.
An interactive demo gives a prospect or customer a controlled, hands-on path through a product experience. A product education library gives people an ongoing place to find explanations, training, release guidance, troubleshooting content, and supporting documents long after the first walkthrough ends.
The choice is not simply “interactive or video.” It depends on the question the user is trying to answer. If the goal is “What does this workflow feel like?”, a clickable demo may be best. If the goal is “How do I complete this task, understand this feature, or find the right answer later?”, a persistent product education library is usually the stronger foundation.
Many organizations need both. The most useful strategy is to assign each format a clear job and connect them into one product-learning journey.