You can publish your video as but you will lose all interactions. So, some people upload their content to Youtube because of that some websites like Fiverr only accept trusted websites like youtube. Of course, you lose all your interactivities but you can show your work as video. I recommend that you upload them yo Youtube.

When you publish your Adobe Captivate project as an MP4 (YouTube) you will lose all interactive elements. You need to publish it for HTML5 and upload it to a web server if you wish to have interactive features perform as expected. If you want to keep score and keep track of your students’ results and interactivity you will need an LMS.

Hello, I am curious to other responses to this question.  I am under the impression that the project has to be published to a LMS or webhost not including youtube for full interaction capabilities.  Paul Wilson discusses how you could publish your captivate project here if you do not have a webhost or LMS.  Video link here https://www.youtube.com/watch?v=KGxed5D1nDw