When you put an @mention in a conversation, it replaces it with the display name of the user, which is their full name (first and last). This is a bit formal for the team chat - is there any way that we can change this so it shows just their first name? I don't want to change the Office365 accounts because the display name is sent out in emails so needs to be the full name.
This part is there. You can remove the last name (with a simple single backspace as well) and it still functions as normal. I don't mind it being an option, but I think there's quite a few other changes I'd like to see prioritized ahead of this.