In How to Quickly Record Narrated Presentations in Canva I demonstrate how to access the recording tool, what actually gets recorded, how to download your recorded presentation, and how to share your recorded presentation.
My favorite aspect of Canva's presentation recording tool is that your speaker notes appear on the screen when you're recording but don't appear on screen in the final recording. This can make it easier to make sure you include all of your important points without having to use a second screen or written notes while recording.