Thanks alot mate for this plugin came really handy, while i went across to Nobara Linux from windows which also work on windows like a charm too
Also if any one use Linux and use a flatpak version of obs use the command for this plugin which is easier than doing it manual
Terminal command
flatpak install flathub com.obsproject.Studio.Plugin.AudioMonitor
information from look at the add-ons tab -
https://flathub.org/apps/com.obsproject.Studio