Avoid blue lights. To do so, keep your night mode turned on in windows, it will reduce value light and intensive the red light.
All modern phones also have this feature
Yeah, its denoted with an eye on most device. Not the best display on a device for sure as it comes with some dirty brown colouration but it's does it's bit. Sadly, phones are hardly the only devices there is that we are exposed to daily. Our TV sets for instance, working systems, etc. A yet go notice them on these devices or perhaps developers weren't putting much in consideration but in all, phones is where most of us gets exposed a lot due to how attached the device is always with us.
Like OP rightly stated, it's never a problem until it blossoms. Its the same with the climate change we've got today. It was largely of no concern at a time and even now, so many would continue to ignore but, for the few that do believe, we could only try and hope for the best.
It's just the way of the world.