@WolfBoy,
One more thing to keep in mind, things change every day, even renaming appraiserres.dll may not be enough in some cases, because if you are connected to the network they may download a new one in this directory on the C:$WINDOWS.~BT and they can still block the upgrade when they see that the machine is not supported. In that case you will get the specific message showing what is missing.
I was just trying an Upgrade from 19043.1202 to 22000.xxx with the 22000.132 ISO on a non Insider system and MS still blocked it.
Had to deleted the $WINDOWS.~BT and try it again while offline (disconnected) without checking for updates.
It is becoming a game, I think it may be pointless trying to find all the new blocks that are changing every day of the week.
At the end you will need a fully supported machine to do any meaningful testing of Windows 11. 😆
Now that I'm up on 22000.132 on a red zone box it is getting updates without being on insider yet.
Getting up to 22000.184 installing kb5005642 36%...
We'll see what happens next and if I can get up to 22454.1000....
Installing from 22454.1000 (Modified) ISO while offline, 37% complete, we'll see if it keeps going...
It will need to get to Insider Dev some how after it is done...😉