Comment by dekhn

I use it for the chroma keying in VC software that doesn't support it, like Meet (which has a machine learning system that tries to identify the background). I often present other windows and using OBS is often more ergonomic than connecting and presenting a second window; I can composite a transparent version of my head over what i'm presenting. Or present my whole screen, etc. Basically, twitch streaming for video games and other stuff changed how I do VC.