I didn't have to file, but DID form 1040-SR. I did NOT I did not enter any banking information. I am concerned since I did file, IRS won't check Soc Sec for bank info

We don't have information about how this will be handled.

I suggest checking the IRS Get my Payment site for information.  The link to that application is here: IRS Get my Payment.

The IRS application does not appear to contain all taxpayer data yet so if your information isn't available today, check again in a few days.