So this happened to me for the first time last night (21APR2023) while charging overnight, bedside. iOS 16.4.1. I had to repeat the vol up, vol down, hold side button multiple times before the iPhone 14 Pro finally rebooted.
For those of us that use our iPhone 14 Pro for a wake up alarm, this is a HUGE problem as your alarm will obviously not go off when you have the BSOD!.... Fortunately, I was scheduled to get up that same time as my wife today; so, her iPhone alarm went off. Thus, we weren't late for work & school. But, most of the time I get up an hour before she does... so, I would have overslept if I were on my normal schedule today...