My Acer laptop running Windows 10 has a very annoying feature: when running on battery, the LCD backlight dims gradually when displaying a dark screen and brightens gradually when displaying light screen.
This is especially annoying when switching between my IDE (which is dark and pleasant to the eyes) and a webpage.
I've figured out that this is happening only on battery, and no matter the display brightness, it happens unless I plug it in. I've checked if there's some setting in the Windows power settings, but nothing popped out at me (my laptop for instance doesn't have adaptive screen brightness).