I agree that it's not worthwhile to do anything more at this point. Because the Form 1099-SA reporting the return of the excess contribution does not indicate the date of the distribution, it would take an audit by the IRS for them to even know that the distribution occurred after April 18, 2022. In the unlikely event that that happens, you can provide the explanation then. Just keep the documentation supporting your position that the tax return was timely filed and that the distribution was made by October 16, 2023.
