Does anyone know where I can find information managing and hardening WSL2 for a corporate environment. That one of the road blocks for using Rancher-Desktop in a corporate environment.

There is https://docs.microsoft.com/en-us/windows/wsl/enterprise also Whitewater Foundry https://www.whitewaterfoundry.com/ is a consulting group that advises on corporate WSL deployments. Full disclosure: I founded Whitewater Foundry. I no longer work there, but friends do.