That is not really "good info" as most of those links provide innuendo and not facts. There is not an iota of actual research in those links except for the one that links to the one about the placement of interocular lenses. . . but even there, most interocular lenses that are placed these days block the harmful wavelengths. Some of my clients are optometrists and ophthalmologists. I've asked them about this and the greatest risk is not the weak blue lights from cellular devices or even LED or full spectrum fluorescent lights, but over exposure to SUNLIGHT.
What actual research there is shows that people who spent too much time indoors were suffering from a LACK of full spectrum light that did not include enough of the blue light that full spectrum sunlight provided. It resulted in the new standard for full spectrum fluorescent tubes and LED lights to prevent depression in office workers.
Yes, too much blue light out-side of a normal circadian rhythm can upset normal sleep cycles but Apple has addressed that by changing the color spectra for night by automatically suppressing the blue light and enhancing the red light at night, which is what the research shows is beneficial.
iPhone X Nite Shift nightime spectra
iPhone X normal daytime spectra