photon78s Edit: While I did not detect any PWM on the backlight at 240fps or at 1/24000 shutter speed photos the opple shows PWM flicker at lower brightness settings (see below). More testing on that later with oscilloscope waveforms.
Yep this lines up with the notebookcheck review (which is good to know, since sometimes notebookcheck can be really inaccurate)
When I say the M2 TB Pro screen is "flicker-free" I mean it's possible to make it flicker-free, i.e. at higher brightness levels.
Also, I actually did use the computer for a while at lower brightness levels yesterday, and whatever high frequency PWM is there still does not affect me nearly as much as the really annoying low frequency PWM-like flicker on M1 Air and M2 Air.
However, PWM can still be avoided at high brightness!
(Lots of people think that is true with other Macs too, but two 2015 Intel Macs I tested actually also show PWM-like flicker on dark grays in 240hz slow-motion even at max brightness!
M2 Touch Bar Pro is the only MacBook I've tested that just doesn't have this issue at all. This is what makes it so unique!)
And with Stillcolor, it's possible to dim the screen through color overlays or color table adjustments (e.g. with BetterDisplay) without introducing temporal dithering.