Self employed

Turbo Tax suggests that I file Form SS-8 so the IRS can determine my worker status for purposes of tax withholding. I realize that the stock awards and dividends are taxable, but as a retiree, was not issued a W-2 because I was not employed at the time the monies were received. Do you agree that Form SS-8 must be filed with the 1099-NEC, or will my former employer be required to issue a W-2 instead?