That Mail is very different from reactions. A nice thing is that outlook can simply sum up the reactions and show them along the message in a non-intrusive way.
A Mail, even with just a subject takes a lot more space and leads somebody to answer to it which messes up the thread.
> A nice thing is that outlook can simply sum up the reactions and show them along the message in a non-intrusive way.
Yeah, that's why I came to like the feature. It's even visible at two places: in the thread list and on an individual email.
The only downside for now: the choice of emoji is too limited. I want my eggplant emoji! But given the history in Teams, where they started with a limited set of emojis, before adding all of them and finally allowing custom ones, I guess it's coming!
The emoji adds some new functionality for sure. That’s just the nature of iterative improvement, right?