Gol D. Roger is a legendary figure from the world of ONE PIECE. All new generations are running toward a dream, that of reaching Laugh Tale and, thanks to his last words, finding the mythical treasure he left there on this mysterious island. Did Roger have a devil fruit or not?
Many theories have been put forward about this over time. Some of them wanted Roger to have eaten the gom gom fruit just like Luffy, although he never gave that idea in the flashbacks. However, the hypothesis of the Frutto Gom Gom failed after ONE PIECE 1044 With the last chapter came an important revelation and that sets a final point.
there Gol D. Roger's strength is based solely on Haki: That's what Kaido says in ONE PIECE 1047, the last published chapter of the manga for the time being. According to Kaiser, ruling the seas requires no skill, only the strength of one's will, and Gol D. Roger succeeds in this endeavor.
So the old pirate king ruled the seas and his opponents only with the haki e without eating a devil fruit. This completes a circle and all theories about Roger are silenced.