It looks like Outlook 2016's calendar Reminders window is set to "always on top" and there's nothing I can do about it. But that seems crazy. Googling isn't finding other people complaining of the same thing, and I can't find a setting for it, so I wonder if it's specific to my machine. Can anyone confirm?
Is there a way to force it to stop being always on top? Maybe an app that can change window behaviors? Or an AppleScript option?