No, what you linked doesn’t show what you think it shows.
Look at the graphic in that article. Does that look like a heatmap of a number 6? It isn’t the same role that Fabinho plays.
Bayern refuse to give him a game because he isn’t seen as good enough defensively or having a high enough work rate. They’ve preferred play an extra forward or even Sabitzer before Gravenberch.
Maybe he can cover the 6, but the evidence is rather thin so far.