Android Central has posted an article with positive results using the new Moto Edge Plus 2023/Edge 40 Pro:
Best phones for PWM/Flicker sensitive people 2023
"Motorola debuted a relatively new flicker-reduction option with the Edge Plus (2023) that ensures the phone's display is on 99.51% of the time during the duty cycle. In practice, this is identical to DC dimming, which means the phone is actually reducing the voltage to the OLED diodes instead of using PWM flickering to fake a dimmer display.
Above 35%, the Motorola Edge Plus (2023) uses DC dimming to achieve a flicker-free display. As is telling from DC dimming measurements, the brightness dips a little bit each time the display refreshes. In this case, the display is refreshing at around 120Hz. This is normal for all DC-dimmed OLED displays.
Below 35%, the phone switches to 720Hz PWM dimming to ensure the display still retains a high-quality image and correct color accuracy.
This is my personal favorite premium phone and I have no comfort issues from using this phone all day long."
I'm very tempted by this phone even if it means leaving Apple.