@dminter I hear you and understand. Yes, the root of our "disagreement"  is on the definition of what "supported" means. My perspective is from having worked in the industry for both vendors and end-users for more years than I care to admit (starting long before the first PC XT). We had to continually make sure customers know "there's a difference between works and supported" - because "supported" implied testing and having resources to be able to reproduce and diagnose problems. 

I hope I do not come across as "beating you up", because that's not my intent. My intent is not to tell anyone not to use Windows ARM on Fusion, Parallels or even UTM. I do agree with you that Windows 11 ARM runs very well on M1 Macs - and right now Parallels makes that easier than Fusion. But there are potential land mines (however small, as you say) - and people need to know where they are.

I've got a lot of battle scars in my career from customers that had problems on configurations that were never stated as "supported" but worked - until it didn't.  Subsequent conversations went from bad to worse. So I beg forgiveness if it seems like I'm a bit too pedagogic as the whole "supported" conversation is like a bad acid flashback.

Sorry you had to pay full retail for those Windows licenses, though. That isn't cheap, especially if you're getting the Pro edition..