Greetings, merckxist!
I was one of the early commenters on this issue. Today, using 11.1.2245 also, I am still getting the UI window jumping up at the completion of scheduled scans. The "Automatically open the scan results..." setting doesn't make a difference; checked or unchecked, the window still opens every time, whether a virus is found or not. Nor does the exclusion strategy identified in an earlier post make a difference for me, either.
I've about resigned myself to the fact that this appears to be like death and taxes, as the saying goes -- unavoidable and not likely to change -- but it sure would be nice if the notification could be limited to at most a balloon message above the tray icon instead of the entire UI window suddenly springing up...