@vvenkate - IRS is backlogged and amendments are taking 6-9 months. Continue to be patient; you are probably nearing the top of the queue.
In June the IRS had 2 million amendments backlogged. That is now down to 800,000.
Agree you should wait for the 2020 amendment to process before submitting 2021. There is plenty of time on 2021 - the deadline is April 17, 2025
keep checking this website (once per week):
https://www.irs.gov/filing/wheres-my-amended-return
