How to stop Google from keeping your voice recordings

Home assistants such as Alexa and Google Assistant are becoming ubiquitous, and as that happens, more and more users are discovering how much of their data is actually being collected by these handy items. The Washington Post’s Geoffrey A. Fowler was so taken aback by the amount of audio material that Amazon collected that he actually made a song out of his clips.
If all this makes you uneasy, you can delete the recordings already made by Alexa and Google Assistant — but of the two,