Thanks. I didn't find anything about Unity games segfaulting on OpenSUSE, so it's probably on the game and possibly related to Vulkan. Apparently you can still force OpenGL in standalone Unity games from the terminal with the --force-opengl parameter, I'd like you to give that a try. I'd appreciate if you could also give me the terminal output.
It's embarrassingly late of me to ask, but what's your setup? I looked it up and some AMD cards might have trouble with Vulkan on some distros. Do you run other Vulkan apps? If not, and if you can grab the Vulkan sample cube utility (vkcube), I'd like you to try that and report back. If this isn't Vulkan, I'm honestly out of ideas.