There is a support organization for the Catalyst driver, and it is part of the AMD Community.
For consumer-level questions, like compatibility with a particular game, please head over to the Catalyst Driver area in the Support Forum. There is a link to the overall support forums in the very top menu.
For software developers, if you have a reproducible case, you can file a defect report at www.amd.com/report.
It is really wired that the only way to report OpenGL and Vulkan driver issues is through that form. I can't even choose an APU as Graphics Hardware and most of the other choices are irrelevant to programmers. Please help us to help you and create an additional form for programmers.