This one's a bit silly, but I still think it's at least slightly important

Entities that I force onto teams using commands don't get that team color when they execute the say command

This might interfere eventually if someone is making a custom map and they want an entity to pretend to be on a team or something.

In the below picture, I set up a clock that sets any entity with the custom name of AngleTrackMe into a purple team related to the scoreboard you see at the right. The entities (the three mobs on screen) are correctly on the team as evidenced by the scoreboard, but in the chat their names are still white.