Your comment makes me think of an interesting idea.

One of the problems with Siri/Google/Alexa is they try to be everything and do everything at once.

What if they split the expertise/domains they're capable of into different names?

For example, there could be a "mind" that is really good at playing music.

So you'd say, "Hey MusicBot, pause the song."

Or, you could say "Hey, InfoBot, what's the weather?"

Over time, you could get to know more "minds" that live in the cloud, and develop a theory of mind for each of them.