OK so multiple problems there, which may have the same root cause:
* Your shell/compositor seems to be causing stalling.
* vulkaninfo says your GPU is "not using the AMDGPU kernel driver: Invalid argument (VK_ERROR_INCOMPATIBLE_DRIVER)"
Sounds fundamentally like the kernel graphics driver isn't working. Please try the supported Ubuntu kernel instead.
Also what desktop environment is this?
OK so multiple problems there, which may have the same root cause:
* Your shell/compositor seems to be causing stalling.
* vulkaninfo says your GPU is "not using the AMDGPU kernel driver: Invalid argument (VK_ERROR_ INCOMPATIBLE_ DRIVER) "
Sounds fundamentally like the kernel graphics driver isn't working. Please try the supported Ubuntu kernel instead.
Also what desktop environment is this?