The author noted that messages sent in the heat of the moment are not erased forever after being removed from a private or group chat. They are visible to the recipient only as a message with text stating that it has been deleted. But there is an easy way to read them.
Backing up the messenger helps. This tool saves all messages at 2 o’clock every night by default. To read a deleted message, you need to uninstall WhatsApp and then reinstall it from the app store. After you log in again, you can restore chats from a backup. Deleted messages will also be recovered.
In addition, there are a number of third-party apps that offer the ability to read deleted WhatsApp messages. Apps like Notification History Log show all notifications stored on the device. Including from WhatsApp chats. However, this does not work with all notifications.