According to a blog post from Bibo Xu, the Google Assistant PM, continued conversation is rolling out to all smart displays including the Google Home Hub, Lenovo, JBL Link View, and the LG XBOOM AI ThinQ WK9 (linked because I’d managed to never heard of it).
Continued conversation allows for more than just not having to say “OK Google,” every time. It allows for more context-driven questions relating to the previous answer although if you have kids you might want to turn it off because I can guarantee they’re going to walk in singing a poop song and confuse Google.
You’ll need to enable it in the Google Home app, and after that it will listen for a little bit after you’ve ended your first question to see if you have any follow ups.
Continued conversation also allows for a greater Cartman attack vector. This may or may not be a bad thing depending on your usage cases, but with more and more people having smart thermostats and improvised boobytraps set with Google Home this might be a concern.[google blog]