For me, asking Siri on my iPhone 11 Pro to play music from Spotify is always an adventure. Last it played me Spanish female singers, and before that I got acquainted with Japanese jazz! Then there's the 20% of times it freezes for around 20 seconds before replying, and the other 20% of time it just says "there's an error, please retry".
The fact that you can’t specify a default music app on iOS also bothers me quite a bit. On Android, assistant knew what app to use so I could just ask it to play something and not have to specify “on Spotify “. Of course this problem extends to loads of other apps on iOS.
