Thank you Sean.
I’ve tried using Powerpoint this way and although it feels like I’m pushing the program to its limit, it works. Kind off.
If I place a video in powerpoint, I can see a “preview” when it’s not playing yet. The preview being the first frame of the video. Do you know why this frame is of lesser quality than when I play the video? Because it is, at least in my case. (The background in the video is a radiant gradient and before the video starts you can clearly see the color lines in the preview, whereas the background is more smooth during playback).