I don't know about the Kante/Conte thing. Might be an attempt to Frenchify his name, although I don't the original African pronunciation. Ribery's first name is a bit like "Fronck", Griezmann's a bit like "ont-won" etc. The "A" sound can be a bit like an "O" in French.
Pogba calls Kante Kon-tay:
Also just found an interview with a Guinean musician called Mory Kante conducted in French where he's referred to as Kon-tay and he didn't seem to bat an eyelid
Would like to see Kante saying his own name.
Not French, but then there's Dante's Inferno too, which I'd personally say as Don-tay, but then there's a good chance I'm getting that wrong!