Vid-20221231-wa0316.mp4

: Open your "Files" or "File Manager" app and search for the exact string VID-20221231-WA0316 . It is usually located in Internal Storage > Android > media > com.whatsapp > WhatsApp > Media > WhatsApp Video .

: Check Google Photos or iCloud for that specific date to see if the file was backed up. Troubleshooting "File Not Found" VID-20221231-WA0316.mp4

: The sender may have deleted it, or it was removed from your phone to save space. : Open your "Files" or "File Manager" app