I've been testing alternatives, and maybe the problem IS NOT DSK, but the Virtual Cam module or subsystem in OBS version 28.hi! sorry for my English. I've a portable 27.2.4 version installed -with all the plugins I need- for the situations I need to use virtual cam. I have always had an installed version (testing) and a portable version (production) Everything works fine in 27.2.4 for my needs.
I've been working OK with OBS NDI plugin + NDI tools WebCam module (the NDI source, not the virtual cam -no need to enable it) so you can choose NDI webcam source in your Zoom or Meet or Skype or whatever your meeting program with OBS 28 and DSK; all work ok! Great great plugin for live meeting!!!