> I think the web really needs some "decluttering". The ratio of processing power by useful payload nowadays is unsustainable. For example any news website, in order to read some text, you need to load a ton of JavaScript, ads (some even video) that add zero value to the intended purpose.

How will w3c sustainability group run by people from irrelevant organizations help with that?

Google is responsible for one of the largest chunks of bloat with its ads, embeds, tag manager, analytics etc. And they couldn't care less. They could penalise sites, but instead they now say that loading a page in under 2.5 seconds is fast: https://blog.chromium.org/2020/05/the-science-behind-web-vit...