I tried to install in Hyper-V and got the same problem (XFCE Manjaro 21). My solution:
Change to second console with CTRL+ALT+F2 and log in
Edit ~/.xinitrc:
SESSION=${1:-xfce-session} → SESSION=${1:-xfce4-session}
*) dbus_args+=(„$1“) → *) dbus_args+=(„$SESSION“)
→ no driver problem, more a Xorg-server not started problem. In my opinion the ~/.xinitrc is wrong, I opended a ticket long time ago but there seems to be no interest in fixing this 
Hope this helps!