For what it’s worth I got the following info… the IRS does not compare past to present returns. It’s not how they process things. It was also generally stated the main thing to do is put the CORRECT cost basis for the year of the sale and for me putting the depreciation I was supposed to take (auto-populated in TT) not what I actually took along with the corrected rollover loss.
For me there was no underpayment of taxes for many years so no need to correct past returns. Likely if you underpaid last 3 years You’ll get advice to amend/correct those returns.
