Should you amend tax return for the Covid-19 Unemployment $10,200 update if one has already filed their taxes

The IRS requests that you do Not amend the 2020 tax return for the unemployment exclusion at this time.

IRS website - https://www.irs.gov/forms-pubs/new-exclusion-of-up-to-10200-of-unemployment-compensation

If you have already filed your 2020 Form 1040 or 1040-SR, you should not file an amended return at this time. The IRS will issue additional guidance as soon as possible.