Even though most[1] 'Dark Modes' don't work for me (in the sense that everything just turns into a muddy blur and I can't make sense of anything anymore at all), I
do realize that's entirely a personal thing, and I
do make a point of respecting the user's preference in the apps and sites that I ship. Small price to pay for being neighborly, and a lot less passive-aggressive than "didn't anyone explain to you how to turn down your display brightness?"
[1] With the exception of that weird Windows 11 theme option that keeps the main window content 'light' yet turns most OS affordances 'dark' -- that one is oddly pleasing...