A test render that I posted of using a 3D rendered background with a 2D foreground with an animation. Highly recommend not to follow it since for some reason the 3D render isn’t followed correctly and the process of inputting the images of the render then “animating” the sequence is painfully long. In addition the preview render and actual rendering seems to hog the computer’s performance so any actions while trying to render in any form may cause it to crash. I guess I’ll stick to my normal process then.
(Hopefully may deter from others trying or find a better way to conduct this.)