Both counties vote similarly with Orange County being slightly more Democratic...
however their voting coalitions are quite different in meaningful ways.
Orange County has much more of a college-educated, high wealth demographic, and significantly more Asian. Maricopa has a much larger middle class and overall socioeconomic diversity, but is much more white than Orange County.
From a social perspective on many issues one might consider "liberal" today like LGBTQ rights, race, education, covid policy, Maricopa has a much more open-minded base to these issues.
Overall Orange County may vote more for Democrats, but I believe their Democratic coalition which is largely dominated by Latinos, Asians, and college-educated whites, is not a monolithic in their views as the Democratic coalition in Maricopa.
By and large though they have remarkably similar voting patterns.
How educated is the Asian population in Orange County? It's my understanding that the Vietnamese there are fairly working class.