Can we prepare a joint federal return and separate state returns? CA and AZ

I live and work in CA. My wife I have been separated with for many years lives and works in AZ. Can we file federal jointly and separate states? She files AZ, I file CA?

Based on my researches, CA would allow since we are separated and would give an exemption form community status . But I cant find information if AZ would allow it? Also, how would we file state, MFS?

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