Hi. I have a version of why Apple removed Attention aware on the locked screen. In iOS 17, users complained massively about the non-working sound of the alarm , and in iOS 17.5 Attention aware was limited to the locked screen to extinguish the sound - it was necessary to move the phone a little when calling, and take it in your hands, and then it worked on the locked screen. But this did not save from the problem with the alarm , people continued to complain, and Apple decided to completely disable Attention Aware (while TrueDEPTH continues to look for the face on the locked screen, it can be seen if you point the camera at Face ID). The problem with the alarm clock was not due to Attention aware, since the alarm was not with a quiet sound, but without sound and vibration at all. It is necessary to inform Apple en masse so that they can return attention aware and reconsider the problem with the alarm.