In almost all video conferencing apps, you can set a background that replaces your real background. It would be interesting to make this background dynamic and adaptable to lighting, time of day, weather, and even the color of your clothing, so that the background and the speaking head would look as natural as possible. For example, if I am sitting by a window and the sun is hitting from the right, then all shadows on the artificial background should be the same, not opposite. If it is currently night, then it is better to light the room with the moon or artificial light rather than bright sunlight from a window. I wonder, is it a complex task? Seems quite feasible. Well, replacing the background picture automatically from static to regularly updated by a generator remains a question.
