More diversity in the LLM space is always good. In my experience though, speaking as a native speaker of one of the less-used European languages, Mistral's models already use it pretty well.
I live in a country with 3 national languages and I happen to use all of them + English + another one where most of our clients are based. Mistral is the only model atm which doesn’t make a mess of it all. It’s not perfect, but it doesn’t force me to “pretranslate” things.