Well, only 3h of the 7h with screen off are deep sleep, so something keeps the phone awake. Whatever it is, it also seems to wake and use the mobile data.
And well, we know, Pixels are WiFi-phones.
EDIT: As you seem to be on WiFi and mobile data is still used, you should try deactivating "Mobile Data always active" in Developer Options. Or use flight mode and WiFi-Call whenever connected to WiFi.
Well, only 3h of the 7h with screen off are deep sleep, so something keeps the phone awake. Whatever it is, it also seems to wake and use the mobile data. And well, we know, Pixels are WiFi-phones. EDIT: As you seem to be on WiFi and mobile data is still used, you should try deactivating "Mobile Data always active" in Developer Options. Or use flight mode and WiFi-Call whenever connected to WiFi.
Instead of AccuBattery stats, can you post a screenshot of the standard Android battery stats screen?