if people don’t yet understand why your product matters, start with an explainer. If they already know your value but want to see functionality, then it’s demo time.
Mixing both in one video? Risky. You can end up with something too long and too unclear. The better move is to create a short explainer to hook viewers, and then offer a demo link for those who want more.
Also, tone plays a role. Explainers are usually friendly and story-driven. Demos are direct and instructional. A professional studio knows how to balance both, or keep them separate when it matters most.