This is not a utopia, but a juvenile and unthinking definition of utopia, or a dystopia in disguise. Most people thrive on some sort of challenge to at least do basic tasks for themselves. A world where AGI fulfils every need is more like being in a senior's home where everyone does everything for you.
It sounds good at first but is actually a nightmare where your autonomy is stripped by the lack of goals to work towards.
Immense surplus and easy access to everything all the time means human beings will no longer need each other much either, so it means a world full of people uncaring towards each other. Fulfilling any want without hard work to get it means becoming effectively like a bacteria, consuming every resource in sight, transforming us into even more of a plague than we already are.
I certainly would not want to live in such a world.