since OBS Studio 26.x could be installed (tested under ZorinOS 15.3 Ultimate)
there is no longer need to add a Virtual Cam via v4l2sink plugin
Never the less this is only the half of the way!
In times of homeschooling / hometeaching it is sometimes nescessary that you can use small videos or podcasts during a jitsi-meet or bigbluebutton session as well.
For that purpose it is nescessary that beneath your virtual webcam via OBS Studio the clear sound of the video do not come via a microphone but more over the virtual audio cable (virtual microphone)
Does anyone have a good and working tutorial / videoguide that could be used to learn how to build that under zorinos?