For tax year 2020 you will file as a part-year resident of each of the two states, and allocate your income accordingly.
See this TT help reference: How do I file if I moved to a different state last... (intuit.com)
If your tax withholding (and estimated payments, if any) for CA exceed your CA taxes due, you will be refunded.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
