Right sorry. If you only get SSA-1099 you do not need to file.
The child tax credit rules for 2021 tax returns were unique to tax year 2021; you could receive the CTC even if you did not have any income earned from working.
That will not be the case for tax year 2022. For tax year 2022, the rules revert back to the requirement to have income earned from working in order to receive the refundable part of the CTC.