Camera Tracking with an iPhone in Live FX! 

Hello Alex, i got a question but i havent seen anything related anywhere on the internet. Either i ask wrong questions or it doesnt exist. I've seen many camera tracking solutions trackers/apps for iphone with lidar but is there anything that could be used while streaming? The idea is to have green screen on the big tv screen in t he background while streaming. And if you move the camera you use for streaming, the projection added to the green screen would be moving as well. (creating sort of a paralax effect). Its sort of easy to do in editing software, but is there something for live video? I bet it would be heavy on PC but if its far enough with low resolution, it could be doable (in terms of computing power). Is there anything like that or is it curently just too hard to solve? Personaly i would like to create ''space window'' behind me and if i moved camera a bit the view from fake window would be moving as well, creating illusion of real enviroment behind the "fake window'' which could be green screen cloth on the wall or the green colour on the tv screen. Thanks for your videos and possibly for the answer, have a great day.