iPhone 12 Pro A second lock screen

[Leob]

I have a weird looking lock screen and was wondering if anyone knew what this was for. The attached image is part of a surveillance video where the user had already unlocked the phone with a normal lock screen and it showed home screen apps. A small gray window was twords the screen bottom overlaying the app icons then this lock screen appeared. I apologize for the blurry pic, but its the best I can do.