Skype has a nice, somewhat hidden feature: when watching a video broadcast, simply click on the video button and use the"Blurmy background" function to automatically blur the background. Using artificial intelligence, this works with any camera, even without depth information. The whole thing then looks more professional and hides private or for the conversation unimportant things in the background.
In order to achieve a similar effect in all other programs in which the webcam is used, tools such as CyberLink PerfectCam and XSplit VCam are recommended.