Others may know better (like @dmertz )
But I "think" it would only have some possible effect if you also made some separate contributions to a traditional IRA for that same year (outside of your employment, and you did not simply roll over the $$ you removed from the company plan).
AND...even then, for a traditional IRA contribution, you would have had to had income exceeding $66,000 (in 2021, for a single person, or $106,000 for MFJ in 2021) before anything "might " change your 2021 tax return, as a result of not having checked that box.
Without you having contributed to an actual IRA in 2021, I don't think there is anything for you to do. IF you did contribute to an IRA...then it depends on your income level whether you might have to amend.
_________________
See if others in here agree
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
