Here on a video you can see exactly same problem as in previous video https://youtu.be/5cTUYrWQ6Ko with small difference: I have changed Display Mode in game onto Borderless which gave me option to change windows from Warface onto other active one and then after to use combination CTRL+SHIFT+ESC to launch Task Manager to see what is going on with Warface Process and then kill it without loggin out of Operating System or restart whole computer. It is not resolving problem but giving less headache to myself and i think if some of you have same problem can be same.

PS. In Task Manager you can see Polish writing Nie odpowiada next to Warface Process which means basically Not Responding.

Hope it help you a bit