Married in different states (CA, NV), how to file?

Married 2021. I’m in CA, made 75k in 2021. Husband in NV made less than 15k, was unemployed for many months. We have W-2’s. Financial statuses uncomplicated (no property ownership, no HSA/401K, etc).

 

How should we file both federally and state? And will this be the most beneficial for us financially?

 

I keep seeing something about “community property” in CA and NV, but it goes over my head. What is that all about?