I use i3wm and want to test dwm, because it uses much less resources than i3wm or awesomewm, but might do everything I want. Desktop environments are using a lot of energy, but it might be interesting to figure out which one uses less, just to have a good recommendation for people who need a DE. My guess would be XFCE, but it’s only a theory, because I think it’s the smallest one without bloat software.

The OS you are using does matter a lot if it’s about sustainability (co2 emissions). If everyone would leave Windows and use a lightweight Linux, the energy consumption would be almost halved over night and that’s only the energy, which would have been saved by the workstations. Avoiding Microsoft or other big companies can save much more energy, but more about this in my next blog article.