With Google Assistant (old assistant) I could say "Hey Google, play daft punk" and it would start playing Daft Punk on Spotify.
With Gemini (new assistant) it says "sorry I cannot play music, but here are links to services where you can find Daft Punk albums".
Fortunately at the moment you can still toggle between them. I guess not for long though.
Orders of magnitude less than the literal trillions that others have?
There's never going to be a situation where a heavy Google Assistant user switches over to Apple for Siri. Anyone who would have switched from Apple to Google for their assistant likely would have done so by now. Siri just isn't a very important feature. It doesn't bring people to Apple's platform nor does it steer them away. It might bother users that it sucks, but it doesn't bother anyone enough that it hurts Apple's bottom line. Frankly, continuing to pour money into that bottomless pit does more damage. I wonder why they do it.