The StarFive kernel is on v6.3-rc4 
One can expect that the 6.4 (or more realistically 6.5) mainline kernel to have everything for a ābare minimumā system. Though, I expect 6.4 to be the first mainline kernel to boot on VisionFive 2. Linux 6.5 should bring in some fixes which will help more beginner-level developers who are working on the VisionFive 2.
Forget the GPU support from mainline for now. That is Imaginationās job, not StarFiveās. That will happen when it happens. Use a serial console now now 