Failure to install CUDA on WSL 2 Ubuntu

It is a bit odd you don’t see any output from the benchmark workload in WSL2. Assuming something went wrong there, it should at least show an error.
When you are running the workload, do you see any GPU activity in the Task Manager on the Windows host?

Also, just to confirm, are you running the latest version of the driver (455.41 from https://developer.nvidia.com/cuda/wsl/download) ?

Is there any chance you could attach screenshots of the entire WSL2 window where the workload runs as well as a text file of the dockerd output from another WSL2 window? (For the privacy reason please feel free to erase the user name in the screenshot)