It is less about the output in lumens of the lamp, but more about the angle and color temperature.

In most cars, the difference between regular headlight operation and “brights” has nothing to do with the output, it’s about the angle of the beams. Of course, when you angle the headlights up so you can see farther down the road, now you also point them at oncoming drivers eyes.

The scourge of “blue” headlights amplifies the problem. They’re no brighter, but they are more uncomfortable to stare down.

In most cars, there are a variety of ways to fine-tune the angle of the beams with often little more than a screwdriver. The problem is that most people have no idea that they need to be adjusted. This is why regular inspections are important as well as some sort of standards that can be applied across a wide variety of cars.

The reality is that correcting poor angle on headlights is a trivial task, should only take a few moments. Additionally, most modern headlight systems are active and can adjust the angle by pointing the lamp down or using shutters or individual LEDs to change the angle or beam pattern. Eventually, this will just be an irritating thing of the past, but it will take a number of years before every GM truck and SUV is off the road as well as a lot of current Hyundai/Kia products (anecdotally observed by me to be the worst offenders).