Here is the one I have BenQ Mobiuz EX2510S 25 Inch 1080P IPS FHD 165Hz Gaming Computer Monitor
The recent Samsung phones seem to be pretty consistent until 25-30%, where the PWM behaviour changes (more aggressive flickering).
Try setting your brightness to 40-50%, switch off auto-brightness, and use a screen filter app (I like darker; see if that helps. Don’t turn on ‘extra dim’ - it seems to do something funky with PWM.
It’s interesting that the Flip3 doesn’t give you problems. As far as I can tell, its PWM behaves exactly the same as the S22.