Open your File Manager app and navigate to: Internal Storage > WhatsApp > Media > WhatsApp Video
Long-press the video in your gallery and select the Share icon to send it via email, Drive, or another messaging app. VID-20190603-WA0039
If the file is missing but you still have the chat, try re-downloading it from the original WhatsApp conversation from June 2019. Open your File Manager app and navigate to:
💡 For example: Are you trying to recover a deleted video? VID-20190603-WA0039