WFH is nice, esp when you can spare a separate room for work at your house/apartment. VoIP is also not a problem, it's even better is several ways than the real thing, as you can chat with multiple people at the same time without dragging them off their desks. Even better - screen sharing sessions.

However, there's one thing I don't understand.Why would anyone do video calls? I mean.. why...? What's the point? If I'm on metered network I'll be charged extra only because I'll have to stream out my ugly face to people who don't want to see it and stream in all the other ugly faces I don't want to see. My voice will become laggy, I'll miss out on some details, and all that because of some completely unnecessary overhead.

So why would you want me to enable my webcam? And why do you feel the need to show your face to everyone else? Why is this necessary...?

For who use OpenCV for work with pictures. highgui module spilted into videoio, imgcodecs and highgui itself :)

I had problem with new version of openCV after reinstalling new OS.
I wasn't able to capture image from Webcam, and i found that my Bashscript installed version 3.0 x)

All i needed to do for get Stream of pictures was...

#include <...opencv_videoio.hpp>

and for compile

g++ ... -lopencv_videoio