The term "Fake News" has come to mean different things to different people. For some, a statement with which a person disagrees could be labeled "Fake News" even though it's factually correct. Some have opted not to use the term and use "misinformation" and "disinformation," instead.
So let's focus on the terms "Misinformation" and "Disinformation."
Misinformation: the inadvertent sharing of false information.
Disinformation: the deliberate creation and sharing of false and/or manipulated information that is intended to deceive and mislead audiences, either for the purposes of causing harm, or for political, personal or financial gain.
House of Commons Select Committee on Culture, Media, and Sport. (2018, July 29). Disinformation and 'fake news': Interim Report. https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/363/36304.htm#_idTextAnchor002