> The problem is that Microsoft's implementations suck. Apple's are thoroughly mediocre and that's ok, people who want more can easily get more, but Microsoft is too afraid of cannibalising Outlook and what not to really commit to it.

I find it shocking how bad Microsoft is at this. I had my dad, who isn't the most tech literate person, set up on the Windows built-in mail client for a while, which I thought worked pretty okay, a decent default solution. At some point a banner appeared in the App, saying that it was being deprecated in favor of "The New Outlook".

I thought okay, I am personally using Outlook for work on my Mac because of an IT policy, and I found it to be an alright Email client there, and it's one of Microsofts flagship office programs, surely it's gonna be a good experience on Windows right?

It was a complete nightmare, immediately during setup it turned out that "The New Outlook" doesn't support regular IMAP/SMTP Email setups, only account login via outlook.com or google mail (I assume this changed now), so I had to switch him to whatever the "old" outlook is, an extraordinarily convoluted looking piece of software with comically bad user experience, nothing like the Mac version. I genuinely felt bad putting my Dad through this, and it's wild to me that they manage to deliver a so much worse experience on their own platform than on Mac.