Ever since I went and upgraded my system to the newest iOS I kept experiencing this and my system becomes unresponsive hence when this spiral black screen occurs all my apps freeze and then stop working after it ends and the icons don't show for the app for a few seconds. I am on my iPhone 13 Pro Max and it has 1tb of storage. I wanted to ask is there any way I can fix this, I’ve been having a black screen every day since iOS 15 it was only at least once a day. Now it’s every few minutes.