I mean, you can test it yourself if you speak more than one language. If you ask for a direct translation and stress not to add content or change the text, it will do a very good job. Translation is a use case where LLM really shine.
I feel like this sub became "technology bad". Nobody wants to think and would rather just dogpile.

Whatever is used, I think nothing is going to be 100% and everything should be verified by a native speaker. It is Wikipedia afterall, not some blog.
Non-LLM services are worse in my opinion but it probably depends on the language (LLMs probably struggle with certain languages as well).