Here are a few examples of videos I have edited.
The first one I find interesting. This was for the Royal Canadian Institute for Science. Because I was asked to shoot it just minutes before it began, I rushed to make a tripod out of duct tape for my phone. And having only one camera angle I had to overcompensate with the compositing and transitions between slides and the speaker, to make the video interesting:
Here are a couple more examples of editing and compositing slides, utilizing two camera angles:
Tuzo Wilson Lecture 2017 (University of Toronto, Department of Physics)
Tuzo Wilson lecture 2018 (University of Toronto, Department of Physics)