Re: Did anyone ever do otherwise? ;)
Dear Microsoft,
There is no business case for third-party developers to re-write their UI to offer no *functional* improvements to their end-users, but to restrict (however slightly) the range of Windows versions that it runs on.
There is arguably a negative business case if they are unable to re-write all of their software at once, because customers *will* notice that the look and feel of the app is inconsistent (like your Control Panel / Settings farce that has been running for a decade now). On the other hand, they probably won't care, because 99% of their customers don't give a shit about look and feel as long as it presents a UI in a coherent way (unlike your Control Panel / Settings farce).
This does not strike me as a difficult concept to grasp. I am therefore somewhat bewildered that you have tried to do exactly this at least half a dozen times over the last 25 years, each time chipping away at usability with "features" like hiding keyboard shortcuts, hiding system menus, hiding window borders, hiding entire, yet new, features like the "charm" thingy, etc.