I think nobody reasonable would argue that you should stop all use of energy, period. The question always is, what does the energy use buy you? Does it buy you food? Safety? Entertainment? Or is it just pure waste created by a combination of greed, laziness and bad engineering?
How much electricity is spent by developers using Electron based apps like VS Code and Slack and npm packages during their work hours? We should all develop in terminals, with no GUIs and no GPU usage. Only in non-bloated languages like C and ASM. Anything else is crime against the climate.
All sites should also be text only (like the motherfucking website), no images, especially hero ones.