When you export a video using Raw Shorts, you have two options: Upload it to YouTube or download it as an MP4 file.
When uploading to YouTube, your video must be rendered by Raw Shorts (this takes approximately 15 minutes, but can take as 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 allows you to download your video.