I thought none of them were good for privacy because you're deviating from the default page render. But I would like to learn more about it.

FWIW, you might also consider Firefox's built-in reader view, which can be configured to use a dark theme.

Invert your screen colors. In kde you can invert the colors of a window with a keybind, I use that to get light mode on dark mode only websites

I use the userchrome css file to change background colors of sites i use all the time. Its a much better idea than darkreader but im pretty sure it can be used to fingerprinting data point.

midnight lizard worked great last time I checked it