Hi @MuddyFunster,
@rpihawth20 had a great idea to install the ubuntu server and then use desktopify to add MATE (or whatever you like) desktop environment. I was able to make a build with 20.04 + MATE that is working. I can recommend this approach until the issue is resolved. I'm sure people are busy, etc.
20.04 server:
desktopify:
Have a great weekend!