From now till the end of the year, if you don't change anything, you would expect a larger refund. If you change your withholding, you could get that money back in your last few paychecks instead of waiting for your tax refund. You can use the IRS calculator to advise you.
https://www.irs.gov/individuals/tax-withholding-estimator
Remember that you and your spouse must run 1 calculation and then submit new W-4s to both jobs at the same time.
Regardless of whether you change your withholding for the last few paychecks of the year, you will want to submit new W-4s in January to set your withholding for 2021. You can run the estimator after you get your first paychecks for the year.
