No. You have to amend your 2021 return.
No. You will have to amend the 2021 tax return to add the Form 1099-B to the 2021 return.
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-already-filed/L4VjJ9BA2_US_en_US