Agreed (re shake again to reverse), but not always - ie if you let off the mouse click , there is no option to shake again to undo the initial shake. Bottom line , I disableded this “feature”. I do think this is one of the best examples of the issues called out by this article/thread. (Or maybe how google docs has a button covering the scroll bar slider once you scroll to the very bottom of a docs file)

This isn't correct. Shaking the window again will restore the minimised windows, whether it's from the original mouse-down or a future mouse-down.

But I agree that it's a bad feature, and IMO it's a rare miss from the Windows UI team who if nothing else have developed excellent window management.

This isn't correct. There is something that happens which makes it forget which windows were open. I am not sure what it is. But is definitely the case that sometimes, I can shake again to put everything back the way I always wanted it, and sometimes I cannot.

You can also disable it but if you want to keep snappy windows you have to do it through a regedit since the two features are not independent for some imo stupid reason.