mouse driver / touchpad driver for xps13 on Windows Server 2019

Dear Community,

I have trouble to find a touchpad driver for my xps13 (9350) under Windows Server 2019. The touchpad works fine, but multi touch gestures such as two finger scrolling or three fingers (right mouse click) don't work.

If I download synaptics and try to install it, it says "synaptics doesn't need to be installed."

Any ideas how I could get my touchpad run properly?

thanks in advance