MicrosoftHi. I read the article and I am having serious doubts about its accuracy, especially because you are using misleading and outdated terminology that Microsoft abandoned in 2012. What you refer to "legacy" or "Win32" apps may in fact be apps compiled against .NET Core 3.1, which is more modern than Universal Windows Platform (UWP). What you refer to "Modern UWP app" is in fact a subset of them, i.e. the sandboxed ones. But most disturbing of all is your reference to the Inbox app! This app has not been part of Windows since Windows 2000. (It predates the word "app"!) Windows 10's email client is called Mail and Calendar.
Also "Legacy Shell Items" vs. "Modern Shell Items"? Do we have such things? As far as Group Policy is aware, both the "modern" and "legacy" shell, as well as all other built-in Windows apps, write their settings in the same place.
