How to make Note 8 screen dimmer? The screen is still way to bright at it's dimmest setting at night. I don't want to use an app that places a filter with an opacity setting over the screen because it just makes the screen look crappy and just makes everything bright grey instead of actually lowering brightness very much.

Is it possible?
I have an earlier Samsung phone which can use Llama, an automation tool which sets profiles that activate upon entry/exit to known areas, like Wifi seen/not seen. Your phone can most likely use it or a similar automation tool to do the same.

In Llama, I have set up a profile for nighttime (time range), plus my specific area, to lower volume and screen dim. Llama's settings allow screen dimming down to as little as 1% from its selector, with about a dozen settings to choose from.

Disclaimer: I am not the developer of Llama, just a satisifed user for many years.