Read this:

https://www.irs.gov/pub/irs-drop/rp-22-12.pdf

Rev. Proc. 2022-12

"This revenue procedure provides procedures for individuals who are not otherwise required to file Federal income tax returns for taxable year 2021 to claim the child tax credit under § 24, to claim the 2021 recovery rebate credit under § 6428B, and to claim the earned income credit under § 32"