Using Enjoyable.app to keyboard commands did I get it to work. The macOS Big Sur was recognizing the remote.It was Dolphin that was unable to capture the buttons until I mapped it TLDR Steam would recognize the PowerA wireless, and wired GameCube remotes, all steam games would work that supported a controller. T his gave me a work around controller support. Launch Security & Privacy system preference and enable Enjoyable in Accessibility, that is the only Security setting needed.
Found a work around, even though Dolphin displays the controllers in the config on Big Sur 11.0.1 and Dolphin 5.0-13240 I have found my own solution after digging up MANY other controller issues with passing off info to a troublesome app.