This handset is still one of the best available on US Cellular and this last firmware update brings it next to its siblings on Sprint or variants based in Europe and South Korea that already got Marshmallow.
http://www.notebookcheck.net/US-Cellular-LG-G4-receives-Android-6-0-Marshmallow-update.158129.0.html
The picture being used is of the LG G4 Stylus. Even without looking into the details, it's really obvious from the appearance of the stylus itself.
Thank you very much for pointing that out, it has just been fixed.