Interesting. I’ve tested the original BenQ light bar and I thought the brigtness were about the same with the Xiaomi one, about 500 lux? I think you could have a bit more brightness with the BenQ, but it was too strenuous in front of the screen. Even with the Xiaomi I almost never turn it in full power.
The autodim of the BenQ was absolutely appealing, will flicker randomly, so I’ve returned it. I think also the light bleed was similar, generally I thought the claims of no-glare is just a marketing point for any light-bar, it is just physically impossible to achieve perfect no-glare conditions in such a short distance.
What it can help to reduce glare if the desk in front of the screen covered with a non-reflective desk mat.
Tbh, I’ve used some hue lights in the back of the screen that would give some bias lighting for avoiding use the light bar as much as I can. The BenQ halo thought looks very interesting…