Screenshot: Sveltekit is not rendering meta data in head correctly

Sveltekit SSR isn’t outputting meta data in head correctly. This is frustrating as the SERP are not in the correct language, although the npm run dev outputs the meta data in head correctly.

There are no build issues and the site deploys w. success: Netlify App

I’m not actually seeing this issue in Google results, or in the page source code itself. I would have expected DuckDuckGo to use the <meta name="description"> text for the search results, but both that meta tag and the ld+json scripts in the head look fine. Maybe this is a crazy bug in DuckDuckGo?