FileChooser::browseForDirectory on iOS (+Android)

I’m porting some code to iOS which involves a FileChooser that calls browseForDirectory. My first issue is that browseForDirectory is not const and the lambda in launchAsync is const FileChooser&.

My assumption is that it is not currently supported on iOS (or Android)?

If so, it looks like it’s technically possible since iOS 13: https://developer.apple.com/documentation/uikit/view_controllers/providing_access_to_directories