No? Each client may be receiving the same document, but based on their device, view port, preferences, etc… the rendered result may be different.
Either way, the measurement of Joules/page is likely to be such an astronomically small number compared to the constant cost of simply having a server at all IMO.
Are you suggesting we give up on rendering layouts that respond to different window sizes, display resolutions, and zoom levels? I think what you’re suggesting is that clients requesting websites should receive essentially an image of the website with limited interactivity, but that’s not going to make anyone that’s ever used a website satisfies in C.E. 2023.
You can make web pages responsive to "different window sizes, display resolutions, and zoom levels" with no JavaScript at all, so that's clearly not what they're suggesting.
