I'm not arguing or disagreeing with you -- genuinely curious about your perspective.
The most damning bit in her Wikipedia article is this: "In 1992 Meloni joined the Youth Front, the youth wing of the Italian Social Movement (MSI), a neo-fascist political party founded in 1946 by followers of Italian fascism. She later became the national leader of Student Action, the student movement of the National Alliance (AN), a post-fascist party that became the MSI's legal successor in 1995 and moved towards national conservatism."
But that does not necessarily mean she is herself a fascist, but rather that she was a member of various organizations that were originally founded by fascists then later moderated (roughly similar to the French FN/RN).
On the other hand, lots of people you could fairly describe as fascist or far-right claim to not be so, so it's possible she genuinely is and the moderate turn of these parties is a sham. As someone who doesn't follow Italian politics I have no way of knowing which is the case.