https://www.theverge.com/2018/7/23/17603320/google-assistant-duo-video-call-integration

Google is slowly but surely tying together its vast and somewhat complicated web of mobile communication apps with an integration between its Google Assistant software and its Duo video calling app. As reported by Android Police today, you can now ask Google Assistant to initiate a video call for you with someone in your contact list, and it will do so by automatically kicking you over to Duo. If you don’t have Duo installed, Android Police notes that Assistant will use Hangouts instead.

The feature may not be rolled out to every user, so it’s worth trying the command now on either Assistant for iOS or within whatever form Assistant takes on your Android device of choice. (It worked for me on iOS.) It’s obviously not a super groundbreaking update — it’s not even clear how long this has been live — but it is a nice little integration if you happen to be a regular Duo user.