After I hit e-file, I notice that I was making four payments to the IRS, is it possible to change that and pay all at once?

Those are Form 1040-ES for making estimated 2020 tax payments.  Those are for your use only and if not needed you can disregard.

If you chose to pay the 2019 federal taxes owed by check then a Form 1040-V payment voucher would have been included in the printout.

Those are not for your tax due.  Those are 1040ES quarterly estimated payments for NEXT YEAR.  They are pre-payments so you don't end up owing again next year.  They are optional to pay and don't get sent with your return.

Turbo Tax doesn't want you to owe next year. They might have printed out if you got a one time large income this year. Like if you took a IRA or 401K distribution or a large capital gain.