Just topped off both husband’s and my Roth for 2020. Already filed taxes. From my research there’s no need to amend my taxes. But it seems that doing so may help in the future if we need to take a distribution early? Is this necessary or just skip it and we can find the info later from Vanguard if we need to know our 2020 contributions in the future? Thanks 
https://www.irahelp.com/slottreport/do-you-have-file-amended-return