I have always moved the window to another workspace using ctrl+alt+shift+ArrowKey.
But now with Ubuntu 17.10 I can't do this. And the worse part is, alt+TAB is tabbing through all the windows not just the windows open in this workspace.
I have compiz, I have tweaktools, I have tested all combinations from its documents, I have asked in #ubuntu irc channel, nothing seems to be working.