Tthe icons in the goddam taskbar won't stay put! You can't keep track of the ordering to find them because the layout keeps changing! Annoying as hell and more, because I absolutely can't use it like that. And they refuse to fix it! All they have to do is make it work dead simply, like Gnome 2 always worked; like Mate works. But they have this fucking oh-so-intelligent sorting algorithm that keeps flipping around the layout. Ugh, just ugh.
Undone by the simple refusal to fix one critical misfeature.
Have you tried the icon only task bar? It doesn't swap icons around for me.