For me, I don't necessarily have to "see" flicker.
I get ocular migraines from lights etc that are flickering, but I can't immediately detect it.
The biggest give way for me is I get an ocular migraine.
Won't be a concern for 99.9% of people, just throwing it out there for other people like...
I am a small minority,. I can have ocular migraines due to lights flicker.
I noticed that these became much more frequent with oled, but never made the connection.
Could it be the emulated pwm flicker that is being talked about? I'm not sure, but it would make sense for me.