Animated Stage in iMovie

I need a digital stage that matches the design you see in this video: https://www.youtube.com/watch?v=wvKLYQgMe1o&t=41s

The end goal is to drop that stage into iMovie and build a short-form educational video.
The file you hand over must import cleanly into iMovie without extra conversion.

The piece is for animation, movement, background and colour has to be animated inside the scene. Artificial intelligence says here "a looping clip or layered export (ProRes 4444 with alpha or a transparent PNG sequence) that lets me place presenters or text in front of it inside iMovie".

Artificial intelligence here also says "Let me know which tool you’ll use, how you’ll match the look of the reference, and roughly how long you think the loop should be so it feels seamless", which sounds good to me. AI does seem to help me build a brief.

I can send you some files I recorded at the Apple Store to help us both with this project.

The final video is to be published to Vimeo and used in a short video app.

Alex
Australia