Continuously conjuring food and water clearly upsets the natural balance of the world.
Goodberries are a different matter. They're just magically nutritious and requires real berries to turn into good berries.
But really I think most druids should not be classed Druids if you know what I'm saying. People able to cast cantrips and maybe ritual magic at best.
Which is the likely reality for the vast majority of magically talented people. Characters with adventuring classes are exceedingly rare in universe. Even running across a level 5 anything is pretty rare. That first chapter does a good job at showing the best of "mundane" D&D. I think we're in for a wild af ride.