Currently Login and Logout policies should have this small window in the bottom right corner that says "Checking for policies". For end users, this seems completely irrelevant. What are "policies"? Why is it checking for it now?
The request here is to have a much better message. Because it would be impossible to appease everyone, I would recommend that the message be customizable. And in addition to this, I would like to see a progress bar that indicates how many policies have been processed (e.g. 1/8 policies completed, 3/8 policies completed, etc.). For the progress bar message, I'm not sure what the best wording would be there, but at the very least the numbering should be there to give the end user an idea of what's happening.
Maybe something like this might be useful to have for other triggers as well. But at least for now the focus is mainly on login and logout. Users sometimes shutdown or restart their computers when these policies are running at login/logout because they have no idea what's going on.