Answered via StackOverflow: https://stackoverflow.com/questions/67659770/how-to-read-large-files-using-swiftui-documentgroup-without-making-a-temporary-c/67659979#67659979

Hi All, I have built a framework exactly for this purpose, supporting up to 7th order playback using a custom ambisonic decoder & opus compressed files - please get in touch if you'd like to beta test it.

So it seems uihovergesturerecognizer is good for getting mouse-overs when i use the mouse in visionOS, but not good for eye-based hover effects

- (UIContainerBackgroundStyle) preferredContainerBackgroundStyle { return UIContainerBackgroundStyleHidden; } on my hosting app's View Controller did the trick