Yes, it is possible for them to be sending all recorded sounds (even if the hotwords are not detected) to a remote server. However, as discussed above, there wo

Yes, it is possible for them to be sending all recorded sounds (even if the hotwords are not detected) to a remote server. However, as discussed above, there would be no legitimate reason for doing so—it is demonstrably true that the phone is able to recognize the hotwords even when a remote server is not reachable.