This was likely the 17th video file handled by the app on that specific day. Why You Might Have This
MP4 is a universal video container format known for providing high-quality visuals while maintaining a relatively small file size. Download VID 20221024 WA0017 mp4
The "WA" in the filename confirms the video was processed by WhatsApp . When you download media from the app, it automatically renames files using this VID [Date] WA [Sequence] format. This was likely the 17th video file handled