The Standard Deduction is automatic unless your total itemized deductions are greater than the Standard Deduction for your filing status. Since you do not know how your spouse filed their tax return you can use itemized deductions if you are able to, assuming that you will be filing as Married Filing Separately.
However, if you did not live with your spouse at any time during the last 6 months of the year, you have your child as a dependent on your return and you provide over one-half the cost to maintain your home, you can file as Head of Household if you meet all the requirements. If filing as HOH there is no requirement that you have to use the same type of deduction as your spouse.
See this TurboTax support FAQ for Head of Household - https://ttlc.intuit.com/turbotax-support/en-us/help-article/taxation/married-person-claim-head-house...
Standard deductions for 2023
Single - $13,850 add $1,850 if age 65 or older
Married Filing Separately - $13,850 add $1,500 if age 65 or older
Married Filing Jointly - $27,700 add $1,500 for each spouse age 65 or older
Head of Household - $20,800 add $1,850 if age 65 or older
