Users can already translate English Wikipedia articles to other languages on the fly with Chrome etc. However, the quality of the translation is just not up to scratch yet, particularly for languages that are radically different from English; just try reading some ML-translated Japanese or Chinese Wikipedia articles.
I'm not sure why you're thinking that; perhaps you're remembering something from a few years ago, or perhaps you have a prior biased against ML/LLM solutions. The translations provided by Google Chrome of Chinese wikipedia pages seem great. For example, Linear Algebra
