I'm also dying to know why

Are 2D converted spatial photos permanent or temporary in the Photos app? That is, the converted spatial photos exported to other Apple devices also have depth information?

I also want to know how to implement this requirement. I searched the official documents for a long time, but I still can't find the answer. But I saw this effect in an app.

I see that there is an official demo that analyzes spatial video to get the video frame of the left and right eyes. Can you use your scheme to display spatial video in non-full-screen condition? It's like the effect of the Photos app showing space videos in a non-full-screen way. I saw that an app in China (Taobao) can display spatial videos in the list, I looked up a lot of information can not achieve this effect, if you know the answer, please tell me, thank you very much.