It's impossible to select and highlight a whole message in Teams
It's impossible to select and highlight a small message in Teams. The like and flag appear over the right side of the message and there's no way to remove them other than to move your mouse pointer off. In order to highlight and copy the message, you need to select with the mouse pointer so it's physically impossible to do it.
I'm suggesting that the like and flag pop up is displayed above or beside the message in question as opposed to on it, in order than text within the message can be selected and copied.