And Apple Intelligence supports just a fraction of languages: English, Danish, Dutch, French, German, Italian, Norwegian, Portuguese, Spanish, Swedish, Turkish, Vietnamese, Chinese (simplified), Chinese (traditional), Japanese, and Korean.
Danish, Dutch, Norwegian and Swedish have quite small populations compared Poland, while I don't see Polish there (37M). I also don't see Romanian, it is slightly bigger amount of people than Netherlands, and the rest from that list are ~< 10M.
Oh, well, at least I don't see Russian in that list.
With ChatGPT, or Claude.ai (or Deepseek, or local models) I can speak with languages that are outside of (traditionally) limited set of Apple. Because it all depends on what is on the web and web has magnitude larger set of languages compared to what Apple provides.
The new Siri is limited at the moment.