I added a freely downloadable video capture to my project page for a paid game. When I uploaded the file I thought I marked it as a video, however it came up on the project page under a heading that says "Download demo".

If someone is doing a search on itch for games that have a demo, wouldn't they be expecting a playable demo? Or should a video also be included?

Is there a better way to host a video clip on itch? Or maybe I should move it to a separate web server?

Itch.io doesn't offer video hosting, sorry. You should put it on a dedicated video hosting service and embed it. A demo should be a sample of what you offer, be it a playable game, a book excerpt, examples from an asset pack and so on.

hello

Thank you. Understood.