On the new UI i’m not sure what is the difference between “country” and “language” (btw “Country” isn’t translated in the french version, the translation would be “Pays”). What I can guess is that “country” is the country where the server are hosted, but I’m far from sure with the current wording (and I’m a technical person, most peoples would definitively not guess it). If that is the case, I would rename it with “hosted in” or something similar.

Concerning the language selection I also find it disturbing to not be able to select multiple language (in my case I speak both french and english, so I would want to select both but not “all language” as I don’t speak german for example). If you allow multiple language selection then instances speaking both language should be displayed before the ones where they speak only one of the language (I don’t know if instances with multiple language exists right now ? but we could imagine it in the future).

As you noted yourself, this is scope 3 emissions, meaning that if I buy a ton of coal and put on fire in my garden the associated emission will be counted toward the company which extracted it.

Such accounting is useful to understand which company produce highly polluting stuff but saying that the emission come from them is highly misleading. Using this way to count emission I’m never responsible for any emission whether it is burning coal for fun, taking the plane every morning or eating exclusively beef. What it says to people is basically that they have no responsibility and shouldn’t make any change.