I wrote a long reply but looks like posting it glitched. I’ll try shortening. I should have noted that the Certification on SUSE and RHEL, is also a certification compatibility matrix. distro ver to software ver, and Siemens needs stable Windows, SUSE, RHEL releases to code to. Trying to install/running on other distros fails in many areas (even with an experiences guru trying fixes). They have a symbiotic relationahip with those curated distros to ensure it doesnt give downtime to a large enterprise. It is not just a piece of paper saying yes we tested the software install here is your signoff. Personally I did get it running on OpenSUSE for obvious reasons.