You've just very eloquently listed out the Windows UI framework dumpster fire. I honestly don't think Microsoft has the balls or ability to set a singular way

You've just very eloquently listed out the Windows UI framework dumpster fire. I honestly don't think Microsoft has the balls or ability to set a singular way forward at this point. WPF/UML have both been pieces of hot garbage. So one more framework to rule them all probably isn't something they're looking to explore at this point. What should probably happen is that they make an announcement similar to that which they dis with printer drivers. "Beyond 2027, it must all look like this. Here is 4 years lead time. Get on the train."