Kimmich is highly overrated. He's not the midfield general he thinks he is, he doesn't mesh well with Gundogan, and as soon as his midfield partner (Goretzka) is out of form all of his weaknesses are exposed.
He's a good RB, but unfortunately he thinks playing there is beneath him. Luckily Nagelsmann gave him the choice to either play RB or to not play at all.
I mean, he has created more chances than any other player who plays the pivot role pretty much in Europe when with Bayern this year! And this season I think he has not been as good as over the last ~3 years, it has been a bit of a "down" year. But he is still one of the best playmaking pivots on earth... and it is his 2nd best position.
Bayern do rely on him too much in that role though. Yeh, he plays the ball incredibly well, but not every pass has to come through him.
But it is pretty incredible in this day and age to be able to play two quite different positions at a world class level. And he does.
Has he been the best German player this season? No. But the resume he has built over the last ~5 seasons? I think gives him a bit of leeway.
So few players on earth link up play like he does. Unreal stats in terms of progressing the ball, chance creation given his general average position on the pitch etc.