Using Classic Outlook on Windows for personal email, calendar, and contact management
It's amazing how many people request this over the many years, and people still think Microsoft cares about their customers.
Not only have they either not addressed it or said it couldn't be done, you see several work-arounds that private individuals have taken upon themselves to fix the problem. So not only can it be done, it can be done by a 3rd party.
I can't imagine a bigger middle finger from Microsoft.
"What, you want basic feature improvements? Sorry, best I can do is mess up your calendar."