I used f.lux (well, mostly redshift) for a while. After reading some doubts about blue light being particularly harmful I switched to only dimming brightness a

I used f.lux (well, mostly redshift) for a while. After reading some doubts about blue light being particularly harmful I switched to only dimming brightness and found that I can dim more without shifting colors and I prefer that to shifting colors (partly because I have a non-24 hour circadian rhythm and am often awake at night, so I would often mostly see the shifted colors). So I would recommend giving that a try before shifting colors or try both ways and see what works best for you. Redshift can easily just change brightness but f.lux doesn't have an option to just shift brightness last I checked and I haven't found a great way to do this on windows desktop (laptops have more built in brightness options that are at least easy to adjust). It sounds like some monitors have fairly easily adjusted brightness but mine is a pain to adjust anything. I tried redshift on windows but it had some issues that I don't remember. Since I just use windows for games, it isn't as big of a deal since games tend to be less bright (and many have brightness adjustment). As my monitor gets older I have more of the opposite issue of it not being bright enough during the day in the summer. Also, I tried gammastep with sway, but it seemed to shift at the wrong time like there is a GMT vs local time mixup. I ended up just switching back to X.