With the iPhone 8 Siri is finally as useful as my Google Home speaker in terms of reliability and utility. Like to find your iphone say "hey siri, where are you," or talking to Siri in the car for changing songs or asking her to play similar songs. She finally understands almost every command I send her.

Maybe you've got a nicer (quieter car) =D.

It usually works for me too, but sometimes it doesn't, now I know to retry.