Configuring preferences and options in Outlook.com
That workaround only seems to work for Windows desktop clients, not for the web client, nor for the macOS desktop client. Unless I'm wrong (I tried in both but didn't see any way to do something similar), then unfortunately it's not even an available workaround for many people.
And even if all of my 2,000 users used the Windows desktop client (almost none of them do), it would be a royal pain to try to push out and maintain something like this. And add in things like ticketing systems as well.
So it's not something that Microsoft should think gets anywhere near solving this ridiculous issue that remains unsolved after years of asking.