Same issue here. iPhone 14 Pro with Belkin MagSafe charge. No matter what settings I choose, it randomly goes dark - sometimes after a few minutes, sometimes after a few hours.
The only thing I can think of is that after the Standby display has turn off randomly, I wake the phone and I have received a new email or text message. I haven’t enabled Show Notifications, but will turn this on to see if it’s related to the issue.
Also, while I understand (I think) what Apple is trying to say, this is worst description I’ve seen in a long time:
When Always On is enabled, the display will intelligently turn off when not in use.
The only thing I can think of is that after the Standby display has turn off randomly, I wake the phone and I have received a new email or text message. I haven’t enabled Show Notifications, but will turn this on to see if it’s related to the issue.
Also, while I understand (I think) what Apple is trying to say, this is worst description I’ve seen in a long time:
When Always On is enabled, the display will intelligently turn off when not in use.