History for the new Google Nest cameras and doorbells can be viewed ONLY in the Google Home app, while history for the older Google Nest cameras and doorbells continues to be viewable ONLY in the Google Nest app, even if you've transitioned to using a Google account. It's Google Nest's 2-app approach (https://www.googlenestcommunity.com/t5/Blog/Message-from-our-GM-Updates-for-our-Nest-customers/ba-p/...).
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