A False Prophet is simply someone who is claiming to be a Prophet but who really isn’t.No, not in the New Testament and not to a Christian. That said, it has a different meaning colloquially, but then we aren't speaking colloquially...we are speaking about something very specific as it pertains to faith.
As I said, false prophet in Christianity is a defined term, a legal term, if you wish. Its usage gives it a precise meaning.
If you need Scriptural citations, I will be happy to provide them.
I have read the New testament, but as I said, the False Prophet may ultimately work for Satan, but seldom do they see themselves as such.
To me its more likely that Muhammad had some sort of mental disturbance, and, in some ways, simply wanted to create his own Theology that worked for him as he didn’t udnerstand Christianity to make sense. combine those and you get the Genesis of Islam.
Later he added elements that benefited himself.
By the way, how does describing Muhammad as a False Prophet who wrote parts of the Koran base don personal gain or on catering to his people make me seem like a Muslim?