We have also opened a feedback in https://feedbackassistant.apple.com/ and waiting for Apple to get back. So far it is still an issue.

We are having same issue, iOS 26.1 final class ShareExtensionVC: UIViewController { ... override func viewDidLoad() { super.viewDidLoad() self.view.backgroundColor = .clear self.modalPresentationStyle = .fullScreen } Presentation sheet is white. If I use a different color such as self.view.backgroundColor = .red I see a red sheet, but for a clear background I see a white sheet. In iOS 18.5 (last tested device) the clear background works fine.

Feedbacks are private, nobody of us can see your feedback so please don't share it as it is of not use

Same issue, I'm on Beta 6 now.