I saw the same thing, for an excess Premium Tax Credit which I paid back when I e-file a few months back. Please see
https://www.irs.gov/newsroom/irs-suspends-requirement-to-repay-excess-advance-payments-of-the-2020-p...
for more details. You may not need to file an amended return and the IRS may automatically send you the excess PTC that you might have paid.
