It's not surprising or new, the English articles are usually the most thoroughly vetted and watched because that's the majority of wikipedia editor's language so the other languages are more vulnerable to national tinging of the article.

It's still far better imo than Grok which is an explicitly biased project driven by Musk's personal issues with wikipedia and it's resistance in english to rightwing edit biasing. It's a suped up version of the old conservapedia project just with Grok driving the edits instead and it's being picked up in other LLMs as a citable source.