No Internet Plug-Ins under Safari Preferences - need adobe flash player

We have Safari Version 14.0 and cannot download Adobe Flash Player. Under Safari - Preferences - Security there is nothing about Plug-Ins. Under Safari - Preferences - Websites there is no Plug-Ins. Under Websites under the left General Column the options are Reader, Content Blockers, Auto-Pay, Page Zoom, Camera, Microphone, Screen Sharing, Location, Downloads, Notifications, Pop-up Windows. There is no Plug-ins. When clicking on Downloads, it gives Currently Open Windows and Configured Websites. I've read prior posts, but all say to find it in Preferences Security or Preferences Website and are older posts. I can't find Plug-ins anywhere. Where do I find plug-ins so I can download Adobe Flash Player? Or, how do I get Adobe Flash Player in Safari another way without Plug-ins? thanks.