1099-NEC on Stock Option

While employed I was offered stock option. I t was vested over a five year period which I completed. The stock was granted to me at no cost. When I retired, but before I left the firm, I sold the stock back. The payout rules were to pay me over a three year period starting three months after my last day at the firm. I have started receiving the payments in 2022. I received a 1099-NEC for the income. My question is - Shouldn't this count as income on a W2 or 1099-MISC? I earned the money while employed with this employer. I am not self employed receiving this income. Thanks to all.