An extension to my previous video explaining some of the methods used in that video to answer some of your questions and an additional technique using a tripod mounted gimbal. Although not absolutely essential for this type of photographic technique it does help when there are close to foreground objects.
Since I filmed the episode with the iPhone 8 I also included a panorama shot with the iPhone 10 using the 58mm EFL lens. Although this looks very similar to the M4/3 image there is a vastly increased image size for the M4/3 image allowing the creation of larger prints, if necessary.
The M4/3 image is 12808 x 6765 and the iPhone image is 6668 x 3751.
Both images are in the blog for your comparison
My photoblog is at www.grahamhoughton.com/tech-talk-latest/