Kurotowa
Legend
At 8th level the Maverick only has cantrips, 1st and 2nd level spells.
Wizard, he be rocking cantrips, 1st, 2nd, 3rd and 4th level spells. Looks like more versatility to me.
The Artificer has infusions, can cast Cantrips from both the Artificer and Wizard lists, can freely swap Cantrips on a short rest and can do so instantly once a day, and in addition to their Artificer spells can prepare one 1st and one 2nd level spell picked from the entire Wizard spell list, and can even change which those Wizard spells are every day instead of being locked in like most subclasses are.
That sure sounds strong to me. But maybe you don't see it that way. Maybe it doesn't fit your playstyle, maybe it doesn't fit into your group's campaign style. That's okay. It isn't for you. Not everything has to be. It's a fairly specialized and niche subclass. Complaining that it's not as strong as a full caster is missing the point by a mile.