"Sloppy focus" is such a great productivity helper but Ubuntu 19.04 seems to have removed it.
The new "focus on hover" option (available from gnome tweak) means if I Alt-Tab to another app but my mouse is still over the old window then the old window immediately receives focus again - so Alt-Tab becomes useless!
Is there some way to get the previous behaviour back?
It's available in gnome-tweaks.
Then run
Go to "Windows" -> "Window focus"
and you're probably looking for "Secondary-Click" option.