The IRS recently updated its frequently asked questions (FAQ) for the 2020 unemployment compensation exclusion.
Fact Sheet 2022-39 includes updates to Topics D (Amended Return for Form 1040-X), E (Impact to Income, Credits and Deductions), G (Receiving a Refund, Letter or Notice) and H (Finding the Unemployment Compensation Amount).
Find the newly updated FAQ regarding the 2020 unemployment compensation exclusion here.