We routinely run reports logged in as a person in that Team, when sharing a screen in a meeting, and make Updates that accurately say "Jeff Rowe on behalf of Abigail Geisinger" which is great. The email that alerts the user (in this case a colleague who is being asked for something) does not includ...
We love the new Teams Request widget on the Home page, BUT when we assign work from there, it leaves the Team assignment in place. That doesn't break the Project, but it does make other reports incorrect.