i added this patch: https://pastebin.com/mVERDqtC
ontop of mesa 22.3.5
(notably i had to comment out this line for th build to work, so maybe im missing some non-obvious commit): https://gitlab.freedesktop.org/robclark/mesa/-/blob/c815ccf448d748055e6b26be02d86184363866bc/src/freedreno/common/freedreno_devices.py#L471

 built with these options: https://pastebin.com/HHceJ44y

installed mesa + vulkan drivers and rebooted, still gnome says i am software rendering :(