The E3D fan shroud files for Creality printers was designed for the common X carriage which Creality uses on many of their printers.
However, Creality changed the hole pattern on the X carriage used on the Ender-3 V2. As a result, only one of the two screw holes on E3D's fan shroud will line up with the holes on the Ender-3 V2's X carriage.
I added an extra screw hole in the model, which aligns with the hole on the Ender-3 V2's X carriage. The mounting screw for this hole comes in from the back of the X carriage, and the hole in the model is sized such that the screw can easily cut its own threads.
See photos for details.
The author remixed this model.