HI, kevinH! I bought the same TV box "A95X MAX", not considering to use it as a Linux desktop, but your post raised some interest inside of me
I tried it and have same issues, often installation froze at expanding space on SD card, one time it gets to the point of login prompt, but I couldn't type anything. Also tried to expand the system partition manually before first booting process, but no success on bringing up this box.