Apparent SUCCESS this morning!
Here’s what I did:
Updated iPhone 14 Pro to iOS 16.0.2, which was released yesterday.
Went into Settings > Display and Brightness > Turned Off AOD (Always On Display).
Rebooted iPhone (Pressed Volume Up, the Volume Down, the Held Power Button until Screen went black AND the start-up white Apple Logo appeared, then released it).
After reboot, turned AOD back on, then rebooted iPhone once more.
Placed iPhone on wireless charging stand overnight,
When I woke this morning, I swiped up on the Lock Screen and was delighted to see the Display Brightness had remained where it was sett from last night.