Excess Contribution to Roth IRA

In January 2021, I contributed $6000 into my Roth IRA for the 2020 year.  I realized I exceed the limit for contributing. I requested an excess contribution withdrawal and received the money in February 2021.  The  earnings computed were $448.31.  I received a total of $6,403.48.  I was told I would receive a 1099-R in January 2022.  My question is do I need to report anything on my 2020 tax filing or would this be reported in the 2021 tax year since I contributed the money in January 2021?  Thank you.