Check your phone's DCIM/Camera folder or your computer's "Downloads" folder.

If you use OneDrive or Dropbox, search the full filename in their respective apps.

Based on the standard naming convention used by many Android devices, here is a "report" on what this filename tells us:

The ~3 often indicates this is a duplicate , a specific frame from a "Motion Photo" or "Top Shot" burst, or an edited version of the original file. How to find this file:

Search for "Nov 29, 2020" in your Google Photos library.