Camtasia
Zooming in and out on your video helps focus the viewer's attention on certain parts of your video. When I was creating the official TechSmith Camtasia Certification, I zoomed in and out a lot. This helps not only focus the viewer but also makes it more viewable on mobile devices.
Through the Zoom and Pan tool in Camtasia 2024 on both Mac and PC, you can easily add zooms and pan over to parts of the screen. In this video, I walk you through how to use it on both a Mac and PC.