Ctrl + MMB zoom in Node Editor broken?

Hello,
I am used to zoom with ctrl and middle-mouse-button. In the 3D Viewport it works by moving the mouse up and down, as I expect it. But in the node editor it is really wonky because it also respects the left and right moving of the mouse and I am not able to zoom in where I want to.

Is it a bug or a new feature? (which I really dont like)

I use 2.80.30

cheers