The IRS has millions of paper returns that they still have to process in the order they were received.
Go to this IRS website for the status of an amended tax return - https://www.irs.gov/filing/wheres-my-amended-return
As stated on the IRS website -
COVID-19 Mail Processing Delays
It’s taking us longer to process mailed documents including:
- Paper tax returns, and
- All tax return related correspondence.
We are processing all mail in the order we received it.
Do not file a second tax return or call the IRS.