So "all it takes" is people. Is there a guideline for this available somewhere? Where should the work be submitted and worked on? I would be happy to dig in to the policies if I can get some pointers as of where/how to start. Unfortunately I know very little to nothing about OpenQA, but happy to learn and pretty sure that others would happy to help out as well.
Anywho, judging by this: https://documentation.suse.com/sles/15-SP1/html/SLES-all/cha-selinux.html and this: https://github.com/SELinuxProject/refpolicy/wiki SELinux is very much a thing in SLES as well.