Retirement tax questions

I just realized today that I can upload pictures. I'm getting lost a bit with some of the explanations but I do really, really appreciate the tax expert support. Since the IRS pushed our taxes back until May, I now have some extra time to really feel confident with what I need to be doing here. Please see these pictures, I've done my best to redact identifying personal info and employer info. Why I'm trying to figure this out is because I filed our taxes in Feb 2021, and then very shortly afterwards I got the 1099-B in the mail and now I just don't know if I need to amend/re-file our taxes. The 1099-B has no boxes 6/8/10/12/etc....

Final 2020 paystubFinal 2020 paystub2020 W-2 boxes2020 W-2 boxesRestricted share sale receiptRestricted share sale receipt2020 1099-B2020 1099-B