Segmentation fault

System:
Kubuntu Linux 19.10
Steam public-beta
Driver: NVIDIA Corporation GeForce GTX 1070/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 435.21
OpenGL Version: 4.6

Crashes while starting (splash screen shortly displayed)

http://bobosch.dyndns.org/crash_20191210221244_1.dmp