hpst I find all sorts of people asking similar questions online going back many years, but they never get anything but the usual unhelpful responses and no solutions. Like this for example https://forums.freebsd.org/threads/eye-strain-from-certain-video-modes-drivers.53468/
On one hand with the knowledge of PWM and blue light being common I feel issues like the ones we talk about are less obscure then they used to be. Does that make the end of the story? Not at all. More work needs to be done and there are still many things we aren't certain about.