Nova Launcher 6.0 beta 5 just launched yesterday, and while not a major update, it does include a couple of notable features. First, as the title of this post says, you can now launch the full Google Assistant directly from the search widget on the homescreen. It's not enabled by default, though, so you'll have to go digging into the settings to locate the slightly obscure toggle. To do so, launch the Nova Settings apps, go to 'desktop,' hit 'search bar style' about halfway down the list, then scroll all the way to the bottom of the following menu. You'll see to the right of the 'Voice search' toggle is now a drop-down menu with the options 'Classic' and 'Assistant.' Classic is the old Google voice actions interface that then launches the Assistant depending on the initiated action, whereas the new Assistant option will launch the full Assistant interface instantly.