It's only been in the most recent update to Google's mobile app that they started defaulting suggested voice queries into the search box. Before that, it's real

It's only been in the most recent update to Google's mobile app that they started defaulting suggested voice queries into the search box. Before that, it's really challenging from a discoverability pov to figure out what exactly you can ask Google. And some things are just clumsy. Try asking it to call someone, for example, if you have multiple phone numbers for them.