I'm not the person you're responding to, but I feel I have a great example. Replacing the Google Assistant with Gemini has made my phone both slower and less accurate. More than once have I said "Hey Google, Play <SONG> by <ARTIST>" and had my phone will chirp back the song is available for streaming instead of just playing it. Once, I even had it claim it wasn't capable of playing music, I assume because that's true on other platforms.