Why do some installed windows updates appear in Control Panel but not in Windows Settings?

Why do some installed windows updates appear in Control Panel but not in Windows Settings? See the list below. Adobe Reader DC 12/02/21 Security Update for Microsoft Expression Design 4 21/10/20 Microsoft Expression Web Service Pack 21/10/20 Microsoft Silverlight 5.1.50918.0 07/10/20 Security Update for Microsoft Windows KB4601319 12/02/21 Security Update for Microsoft Windows KB4598481 15/01/21 Security Update for Microsoft Windows KB4593175 10/12/20 Security Update for Microsoft Windows KB4586864 12/11/20 Security Update for Flash Player 21/10/20 Security Update for Microsoft Windows KB45772

Question by desbest on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.