Comment 7 for bug 998285

I may've found a workaround that doesn't depend on installing any other packages or switching to gnome:
Keyboard settings, shortcuts, navigation, "switch windows of an application"
This was set to "disabled", despite "Alt+`" already switching windows of an application. I explicitly set it to "Alt+`", and now "Alt+Tab" seems to switch to the last used other application, not the last-used other window. Can anyone else confirm this works?