Not your parent poster, but for me the external variable light is mostly a nuisance. It can be too bright and cause glare, or it's not enough and I need artificial lighting anyway. So I just blot it out, I work from home and I do the same across my entire home, blinds block external light and I use artificial light all day.

Sunlight is nice if I'm going to be outside admiring nature, but it's crap for reading, playing video games, any number of activities I want to do at home.

The cheap place I'll be staying on vacation in a couple of weeks offered a "free upgrade" to a room with a window and I was like "I don't understand - what would I in theory see out of this window?" because it's in a city centre, and obviously as a tourist I shall go out and look at museums and galleries and stuff, I shan't be sat there all day looking out the window, so it seems pointless. The other person I'm going with likes windows, so they'd already paid a little bit extra to have a window anyway. Crazy.