In hindsight, he probably adapted to Bayern's squad & recruitment more than he followed his own vision. As I remember, he had already (cautiously) hinted at that during his time there. And his decisions for the DFB team, with freedom to pick & choose, are pretty strong further evidence.
I think that makes sense when looking at his treatment of the Bayern players. Especially Goretzka but also his decision to bring Kroos back and move Kimmich to RB. It is definitely suspicious that he basically built his Bayern team around those two and then did the more or less exact opposite for Germany.
But then again it might also be a reaction to current trends in the Bundesliga. When he took over, Bayern had won the treble with Flick football. In the meantime, Stuttgart and Leverkusen finished second and first with playstyles that are very different to the typical German pressing and transition style. That could have made him reconsider his tactical ideals as well. One way or another, so far he's done very well I think.