But not to worry if you don't speak Dutch

Google admits over 1,000 private Google Home recordings were leaked

"The transcribers are said to write down "every cough and audible comma," as well as attempt to identify whether a man, a woman, or a child is the one speaking. Google uses these transcriptions to make Google Assistant smarter."

https://bgr.com/2019/07/11/google-assistant-spying-audio-recordings/