When wfh was implemented company wide at the start of Corona communication actually got better because now everyone was forced to use a chat app with video calling. That way every colleague was just one click away. The shyer ones typed out their quick requests and those who needed to see a face called with the webcam enabled. Before that it was just too much hassle for some people to write an email, use the telephone or walk through the large building to the colleague. Even quick meetings with people from four different departments were now much easier and quicker to organise.