Your marital status as of 12/31/24 determines your filing status. Since you are still married, you can file as Married Filing Separately, Married Filing Jointly , or Head of Housing (if you're eligible). Refer to the eligibility requirements explained in the TurboTax Help article Can a married person claim Head of Household filing status?
For additional information refer to the TurboTax articles: What is my tax filing status (single, married, etc.)? and Do I qualify for Head of Household in 2024?