In response to popular demand, I will give a step by step demonstration of how I was able to make the effects shows in this video.
https://www.crowdcast.io/e/6t9xwoxs

As you will see, I am able to livestream to any platform a setup which includes me on a blurred background, a floating logo in front, and a floating Powerpoint presentation to my side on a transparent background.

The tools used for this are simply MS PowerPoint and ManyCam (you can get a free version).

How to make the Floating PowerPoint Streaming Preso