With v1.1.6 on a reTerminal, plymouth is show in the correct orientation, but when the firstboot wizard launches, the display is roatated 90 degress CCW from normal, and the touchscreen input is rotated 90 deg more.
I initially tried to workaround by sshing in with the default credentails, and using wlr-randr --output DSI-1 --position 270, but while this rotated the display, the touch input was still rotated.
As a workaround, I started wayvnc, and completed the firstboot wizard over SSH-tunneled VNC.