iOS 14 deprecates file export with the document picker view controller. The initialisers where you pass URLs have been deprecated, as has the UIDocumentPickerMode enum:
@available(iOS, introduced: 8.0, deprecated: 14.0)
public init(url: URL, in mode: UIDocumentPickerMode)
There is no indication in the documentation or the headers of what, if anything, is meant to replace this.
Did I miss a WWDC20 talk discussing these changes?
How are users meant to export files in iOS 14?