For those on Windows there's Twinkle Tray, works remarkably well. It has the ability to set timers, which I set to dim my monitor at night and increase the brightness during the day.
I have a laptop with a Ryzen 3 and a 1660ti, so it might be the Nvidia graphics that is enabling this.
[0] https://smile.amazon.com/Cable-Matters-Multiport-DisplayPort...