Siri is good for getting stuff done and with it’s tight integration with iOS it does things my google home can’t do.Google and Amazon are literally giving those things away as subsidized tchotchkes through hundreds of different product purchases and service partnerships. Apple can't compete with that.
Despite all the groupthink about Siri not being good, it has outperformed my Google Home on most of my daily voice tasks that I have put head to head. For one area - Siri blows Google out of the water on sports related questions and it is not close.
The google home is better at general knowledge questions.