You are correct, yes,yes,no,yes.
Im not actually using a windows machine. Ubuntu fully updated.
Ill have to look up the lsusb and see what it shows. I know that the firmware updates properly using vscode so the communications and board should be working fine.
If communications is working OK, then you should be able to manually run an auto-home (G28).
That would mean all the I/O ports are working which just leaves the LCD port.
I noticed that in the Marlin firmware, there are configuration options for LCDs based on different chip sets. Maybe have a look at the back of the display and note the number shown. Then check that the firmware has that particular model enabled.