My favourite: It says you have an unread message. It won't tell you where. You need to go hunting for it.

My favorite feature is when there is a message in a chat you are already looking at and you have to click out of it and back in before the notification will go away

I love the feature where I paste something into an email, and then it stops me typing by popping up a useless menu.

My second favourite is the one where you're typing, and suddenly it starts treating all your keypresses as shortcuts and deleting things. I love that.

And don't even get me started on Outlook search. I can no longer find any emails, even by typing in the things that were on them.

But hey, at least an admin can fuck it all up from one place!

How about the feature where you get a notification that someone said something in a group chat but if you click on the notification it opens the private chat with that person instead?

Or the one where you enable recording a meeting and only after the meeting does it tell you that it couldn't actually save anything to OneDrive so there's no recording? That's some advanced UX engineering right there.

Or the one where it hides less used "applications" and decides that the only ones it should hide are the chat and the calendar. Not everyone can come up with that.

Or how it shows a banner telling you to update even if your client is company-managed and especially if you're using their web client.

FLOSS can't hope to compete at that level.

What about freezing and locking the whole system ~45 minutes in a meeting every time? Or hear me out, lets display the content of the window in the centered rectangle that takes 15-20% of window and it can be resized down but not up?