In 2.4.x series kernels my TrackPoint works as I would expect it. When I push the "scroll" button nothing happens, when I push the scroll button and move the trackpoint down, the window scrolls down, ...

TL;DR: Lenovo's new ThinkPad X9 14/15 laptops have been leaked, revealing the removal of the TrackPoint and reduced connectivity options, featuring only a USB Type-C, USB Type-A, and mini-jack port.