I wonder how this will play out. It was my understanding that the whole forced updates on Windows 10, free upgrade from 7 / 8, etc were meant to cut down on the number of people running old, unpatched versions.
For what it's worth, I installed Win 11 on an unsupported computer (4th gen Xeon, no tpm) out of curiosity and I did get updates. Of course, that doesn't mean it will happen forever.