Retirement tax questions

Thank you so much for your responses.

 

Yes, I did correct the prior basis amount in the interview. It then asked for an explanation for why my entered amount was different than the Turbotax amount. I entered an explanation. Will this explanation go to the IRS? Should I remove the explanation?

 

Using the CD version, I did transfer data from my 2020 return.  I just looked at the "IRA Information Worksheet" part III line 12 and it has the correct amount, $3,077. Is this because of my override entry above?