"We received a notice from the IRS for overpayment on a 2021 return;"
IRS does not roll this forward.
For 2022 tax return purposes it should be ignored.
Eventually, IRS operations will smooth out and you will get your refund, someday..
If you can show hardship, the TaxPayer Advocate Service may get involved.
P.S. I'm in the same boat - waiting for a promised check.
