When you export a video using Raw Shorts, you have two options: Upload to YouTube or download as an MP4 file.
When uploading to YouTube, your video must be rendered by Raw Shorts (this takes approximately 15 minutes but can take a much as 1 hour). Then once the video has been rendered, it is automatically posted to your YouTube channel and can be found using YouTube's video manager.
When downloading your video as an MP4 file, again, your video must be rendered by Raw Shorts. Then once the video has been rendered, it is sent to you in an email.
Within this email is a link that will allow you to download your video.