At work I have to live in a corporate #Microsoft Windows kind of world. So that's Sharepoint for the intranet, and all of those other apps which I tolerate to varying levels.
I also work on my own iPad Pro and there are many Microsoft apps that are passable. I quite like Microsoft ToDo except it randomly crashes all the time on the iPad.
Sidenote: did you know that - unlike every other Windows app - OneNote does not support inverted mouse scrolling? Drives me crazy.
Anyway, today I noticed that the new updated version of Outlook properly supports shared mailboxes.