https://www.cnet.com/news/android-users-can-now-make-alexa-their-default-assistant/

Android allows for greater flexibility with voice assistants than Apple, giving users the freedom to pick the specific helper that answers the call whenever they give the home button a long press. Alternatives like Cortana were already available to play with -- but now, Alexa is in the mix, too.

Android users can now swap Alexa in as their default voice assistant.