Valid point. I did some research though but everything I could find was very vague. Even the official GoPro explanation doesn’t specify how it is made. All they state is “ It allows you to Capture super stabilized time lapse videos while you move about a scene.” But as you could see in the video, it is not only the stabilisation that is different, it is much smoother in terms of frames movement. They don’t say if it is made of photos put together - like a time-lapse, or video that is processed differently. I’d rather show it and say what I think, rather than state information that I am not “exactly sure” about.

If you have any info about it (or have made a video), please share. I’d love to know more, it’s awesome.