We don't support WSL here, as it is basically unmanageable (i.e. impossible to ensure the virtual OS is patched and secure). We setup a Linux VM on Hyper-V instead, if needed.
I don't see any description or settings on how the front end connects to the backend, and if there are settings to tell it what the backend settings are. Is it possible to specify a hostname and credentials for it to use to connect to a Hyper-V Linux VM?