Running MacOS on a laptop with two external displays, one of which - the one in the middle - I do most of my work on. This display is the one which displays my Teams notification banners. I am trying to move it to a secondary display. I do not see a setting anywhere in Teams where that can be configured. I have tried moving Teams to a secondary display, as well as the dock. Even if I'm working on a secondary display, my main one still gets the banners. Any ideas how to resolve this, other than physically swapping the two external displays? Sadly, searching this blog for "location", "monitor", "display", etc, does not translate to, "that thing sitting on my desk".
It seems "asking publicly" has once again led me to my own answer. Again, this is on MacOS.
System Preferences -> Displays -> Arrangement. Move the menu bar to the display for which you want the pop-ups. It is apparently insufficient to merely "mouse to bottom of screen to move the menu bar". After changing this setting, even if you do "mouse" the menu bar to another screen, notifications will respect the setting in System Preferences.