The initial installer menu loads fine, and pressing "1" gives the usual stream of system-probe messages, so that much works perfectly well. When sysinst tries to present its TUI, things go immediately to pot.
A couple of green and magenta horizontal lines appear over the text near the top of the screen, and the bottom quarter initially flashes with some green-on-black garbage, which is quickly replaced by slowly evolving white-on-blue garbage. I take this to be a disagreement between the GPU and the driver selected by the installer.