thank you for your feedback.
The issue here is, that the sharing screen (with many items) is basically a files app listing. in here, we can currently only register actions (which trigger the inline “one click play”).
I show the 360° player in the files app would involve a lot of tweaking of styles & js files. due to an integration and upgrade-stability point of view, this is not what we want to do currently.
If you want to share the Audio Player itself with its functionality, you can only do it via a separate user (and share the files with him). then you have the full integration