@Kuroiikawa You seem to be laboring under the delusion that magic is equivalent to technology, which it very much is not. Imagine this: from the very beginnings, all the way back to when humanity was a group of hunters and gatherers, people had the ability to shoot fireballs out of their hands which, for the sake of argument, would act like rifle rounds. That one change would negate the need for the bow and arrow, a simple piece of technology that has been used for hunting and war since almost as long as there've been humans. Without the bow and the laborious training required to master one, there'd be no need to develop a crossbow; without the crossbow, there'd be no developing the musket, and without the musket, you don't have firearms.
Humans come up with new technologies to make their lives easier. Weather magic, or even just magic that could create water from nothing, would render most forms of irrigation technology obsolete. Ice magic would easily replace pretty much every form of food preservation. Magic used to manipulate stone and metal would likely replace most forms of construction technology. Hell, just being able to create or conjure the exact type of ore or alloy you want for something would render most smelting technology obsolete. Healing magic that could cure patients of disease or wounds or even regrow limbs would instantly negate the need to develop pretty much the entirety of the medical field.
Any kind of magic that can transmit messages over long distances supersedes the need for the radio or telephone and, depending on how said magic is structured, would take the place of television and the internet, as it could also replicate those things.
If every facet of modern technology could be perfectly replicated by magic as early as humanity's first nascent tribes and could be done by anybody, who would feel the need to try to come up with said technology?
Though, of course, therein lies the other side of the coin: "by anybody". If magic is even slightly exclusive, to the point where only, say, 30% of people can use it (or only they can use more advanced forms of it), you instantly have the makings of a magocracy that would 100% suppress any form of technology that doesn't rely on magic, because if everybody can do what only they, the privileged few can, they immediately lose their cushy lives.
So, no, having magic that could easily replicate all modern technology wouldn't lead to some perfect utopia, but it
would stymie creativity. Trying to come up with a mundane solution to a problem that's already been solved by magic is just a case of trying to reinvent the wheel: there's no point.
Unless a large enough percentage of the population is absolutely without magic of their own.