This is a headless (command line) application to generate Vulkan implementation reports compatible with https://vulkan.gpuinfo.org. Unlike the GUI hardware capability viewer this has minimal external ...
If you use Flatpak OBS, you need to install Flatpak OBS plugin. If you use Flatpak Steam, you need to install Flatpak Capture tools to be able to capture games running inside Flatpak Steam runtine.