A lost Google Pixel 8 can be tracked down even if the battery is exhausted and the device has no connection to the mobile network. This functionality of Google's "Find My Device" network will also be available for other smartphones in the future.https://www.notebookcheck.net/Find-My-Device-Locating-smartphones-with-empty-batteries-will-no-longer-be-exclusive-to-the-Google-Pixel-8.825628.0.html
So what they mean is they programmed the phone to turn itself off before the battery is actually dead?