you need mute in windows audio mixer "vmixzoomnode"

Interesting. I was using a Behringer 404HD audio interface connected to my vMix production laptop a week ago so that I could produce in vMix and then send audio and video content from a an in-person conference into a Zoom webinar. (I was NOT bringing any Zoom audio or Zoom remote guests into vMix for this production). That worked without any problems, but again, I was not using any Zoom inputs into the vMix production.

And yesterday, a week after that event, when I for the first time brought Zoom inputs into vMix 27, I encountered a similar problem to what you outlined in this thread. In my case, the Behringer 404 HD was no longer connected to my laptop, and in my production yesterday that had both Zoom callers and vMix Call participants, only the audio from the Zoom callers was unexpectedly being heard through my laptop's speakers, while all of my other audio in the production (including the vMix Calls) was being properly routed to my headphones (as was indicated in my selections for Audio Outputs in vMix).

Per your comment in my separate thread on the issues I was experiencing with Zoom audio inputs in vMix (see: https://forums.vmix.com/...-in-vMix-27#post113968), I read your thread here and see what appear to be some similarities between our experiences.

Very helpful post. Thank you.