I have followed the YouTube https://www.youtube.com/watch?v=ad30G5oBHtg&t=14s with no success. I have tried to create monitors as a filter to the video media player. I have tried separate sourse in same scene as video media player. I have gotten it to work with LoopBack and I am looking for a cheaper answer.
VB-CABLE is a simple virtual audio cable to connect 2x applications together (a player to a recorder).
Since you have basically 2 capture applications (OBS and ZOOM) you must consider using Voicemeeter Banana.
watch this video to start your config: https://youtu.be/nIpt3jF0Nds