Correct, parent comment is spreading misinformation/false sense of security.

Signal does not have the plaintext of the messages and therefore could not send it as part of the notification.

Apparently if I’m reading the work of others correctly a notification component and subsequent other interaction logs, in this case that the notification was not generated, is also logged in knowledgeC pointing to at least some metadata of non-notified messages logged.

The signal app does and does the OS once the notification is displayed. The latter is where this issue originates