Early in my career I spent a lot of time thinking that HTML was antiquated. "Obviously they had 20th century ideas on what websites would be. As if we're all just publishing documents." But the beauty of HTML eventually clicked for me: it's describing the semantics of a structured piece of data, which means you can render a perfectly valid view of it however you want if you've got the right renderer!

I imagine language choice to be the same idea: they're just different views of the same data. Yes, there's a canonical language which, in many cases, contains information that gets lost when translated (see: opinions on certain books really needing to be read in their original language).

I think Chrome got it right at one point where it would say "This looks like it's in French. Want to translate it? Want me to always do this?" (Though I expect Chrome to eventually get it wrong as they keep over-fitting their ad engagement KPIs)

This is all a coffee morning way of saying: I believe that the browser must own the rendering choices. Don't reimplement pieces of the browser in your website!